a circle has a radius of 22 cm. the circumference of the circle is​

1. a circle has a radius of 22 cm. the circumference of the circle is​

Jawaban:

artinya

sebuah lingkaran memiliki jari-jari 22 cm. keliling lingkaran tersebut

Penjelasan:

maaf kalo salah

2. A circle has a radius of 56 cm. Determine the area of ​​the circle!​

r = 56

L = [tex]\pi[/tex]r²

L =  22/7 x 56 x 56

L = 9.856 cm²

Answer :

Given : -

A circle radius = 56cm

Find it : -

Determine the area circle!

Solution : -

L = 22/7 × 56 × 56

L = 22 × 8 × 56

L = 9.856cm²

-Ihopethishelps

3. the area of a circle of radius 49 cm is​

Penjelasan dengan langkah-langkah:

dik: r = 49 cm

dit: luas lingkaran

luas lingkaran = π × r × r

= 22/7 × 49 × 49

= 7.546 cm2

semoga membantu :)

4. the area of circle with radius 56 cm is ​

Question:The are of circle with radius 56 cm is...

Terjemahan:Area lingkaran dengan jari jari 56 Cm adalah...

Answer/Jawaban:

Jika ditanya keliling: (Rumus: 2 x π x r)

> 2 x π x r

> 2 x 22/7 x 56

> 2 x 22 x 8

= 352 Cm ← Answer

Jika ditanya luas: (Rumus: π x r x r)

> π x r x r

> 22/7 x 56 x 56

> 22 x 8 x 56

= 9.856 Cm² ← Answer

Note: 22/7 dibaca 22 per 7.

Semoga Bermanfaatdan Membantu:)

5. A circle has a radius of 10,5 meter. The circumference of the circle is

66 m

Penjelasan dengan langkah-langkah:

r = 10,5 m

d = 10,5 x 2 = 21 m

K = πd

= 22/7 x 21 m

= 66 m

6. 2 9. The radius of a circle is 21 cm. Find the circumference of the circle in terms of t?

The circumference of the circle is 132 cm

Step by step

Circumference of the circle

= 2 × π × r

= 2 × 22/7 × 21

= 2 × 22 × 3

= 132 cm

Jawab:

Penjelasan dengan langkah-langkah:

radius(jari-jari)=21cm

cicumfence(keliling)=?

C=2xπxr

C=2x22/7x21

C=132cm

the cicumfence is 132cm

7. Quizz EasyA circle has a radius of 7 cm. Then the circumference of the circle is ...Note:Good Luck Everyone​

K = 2 × phi × r

K = 2 × 22/7 × 7

K = 2 × 22

K = 22 + 22

K = 44

__

Jadi, Keliling lingkaran tersebut adalah 44

__

✿ Penyelesaian ✿

K = 2 × Phi × r
K = 2 × 22/7 × 7
K = 2 × 22
K = 22 + 22
K = 44

✿ Kesimpulan ✿

Keliling Lingkaran Tersebut Adalah 44 cm

Semoga Membantu ツ !

8. The radius of a circle is 5 cm, so the diameter is

Jawaban:

For a circle, Diameter=2×Radius

If radius =5cm

Then, Diameter=2×5=10cm

Jawaban:

For a circle, Diameter=2×Radius

If radius =5cm

Then, Diameter=2×5=10cm

9. The area of a circle is 38.5 cm². Calculate a) The radius 2 38.5 cm² =​

Jawab:

Penjelasan dengan langkah-langkah:

r = radius

Area of a circle = 38.5

38.5 = (22/7) x r x r

r² = 38.5/(22/7)

r² = (38.5 x 7)/22

r² = 12.25

r = V12.25

V = root/academik

r = 3.5

The radius = 3.5 cm.

10. if the radius of the circle is 25 cm, what is the circumference of the circle?

ANSWER BY : Rivtno___________________

Radius = Half of diameter = 25Circumference Of the circle formula =2πr

JAWAB =2πr

=2×3,14×25

=6,28×25

=157CM

SEMOGA BERMANFAAT

11. The circumference of a circle that has a radius of 15 cm is... (3.14)

K=2πr
K=2*3,14*15
K=30*3,14
K=94.2

12. 1.The diameter of a circle is 20 m, so the radius is .. 2.The circumference of a circle with the diameter of 14 cm is .... 3.The circumference of a semi circle with the diameter of 14 cm is .... 4.The radius of a circle is 28 cm. The area of a quadrant is ...

Jawab:

1. 10 m

2. 44 cm

3. 36 cm

4. 154 cm²

Penjelasan dengan langkah-langkah:

1. Radius = half diameter = 20 /2 = 10 m

2. Circumference = 2 x 22/7 x 7 cm = 44 cm

3. Circumference = diameter + half circumference = 14 + 22/7 x 7 = 36 cm

4. Area quadrant = 1/4 x 22/7 x 14 x 14 = 154 cm²

13. A circle has an area of 64rt cm? Work out the radius of the circle.

r = 8 cm

Penjelasan dengan langkah-langkah:

r² = L : π

= 64π : π

= 64

r = √64 = 8 cm

14. area of circle 314 cm, find the radiusthank you​

Jawaban:

10 cm

Penjelasan dengan langkah-langkah:

area of circle ÷ π

314 ÷ 3,14 = 100

√100 = 10 cm

Jawaban:

area=3.14 r²

314 =3.14r²

314/3.14=r²

100= r²

akar 100=r

10=r

Penjelasan dengan langkah-langkah:

15. Find the following. (Use t = 3,14)a The radius of the circle with a diameter of 125 cm.b The area of the circle with a radius of 10,5 cm.c The circumference of the circle with a diameter of 144 cm.PLS BANTU PLS​

Jawaban:

A. 10,5 cm

B. 347.,28 cm²

C. 452,16 cm

Penjelasan dengan langkah-langkah:

Point A.

Diameter 125 cm,

[tex]d = 2r \\ 125 = 2r \\ r = \frac{125}{2} \\ = 62.5 \: cm[/tex]

Point B

r = 10.5 cm

[tex]a = \pi {r}^{2} \\ = 3.14 \times 10.5 \times 10.5 \\ = 347.28 \: {cm}^{2} [/tex]

Point C.

d = 144 cm,

[tex]c = \pi .d \\ = 3.14 \times 144 \\ = 452.16 \: cm[/tex]

16. find the circumference of a circle with radius (a).30 cm (b).100cm ​

Jawab:

a. 188,5 cm

b. 628,3 cm

Penjelasan dengan langkah-langkah:

Circumference = 2 × π × radius

a. 2 × π × 30 cm = 188,5 cm

b. 2 × π × 100 cm = 628,3 cm

#BACKTOSCHOOL2020

17. The radius of circle with curcumference 37,68 cm is   a.12 b.10 c.6 d.4

circumference = keliling=37,68cm
radius of circle = jari jari=?

K=2 x π x r
37,68cm= 2 x 3,14 x r
37,68cm=6,28 x r
r= 37,68cm : 6,28
r= 6cm
c. 6 cm

18. The circumference of circle is 248 a. circle radius b. area of the circle

Diketahui:

The circumference of ⭕ = 248

Ditanya:

➊ The circle radius? ➋ Area of the circle?

Jawab:

➊ A circle radius

[tex]Circumference = \pi \times diameter \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ 248 = 3,14 \times diameter \\ diameter= \frac{248}{3,14} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ diameter = 78,98 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ diameter = 79 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ radius = 79 \div 2 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ radius = \boxed{39,5} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: [/tex]

So, the circle radius is [tex] \boxed{39,5} [/tex]

➋ Area of the circle

[tex]= \pi \times {r}^{2} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ = 3,14 \times {39,5}^{2} \: \: \: \: \: \: \: \\ = 3,14 \times 1.560,25 \\ = 4.899,185 \: \: \: \: \: \: \: \: \: \: \: \: \: \\ = \boxed{4.899,2} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: [/tex]

So, area of the circle is [tex] \boxed{4.899,2} [/tex]

☻ stay healthy ☻

19. the radius of circle with circumference 37,68 cm is .... terimakasih

keliling = 2.phi.r
37,68 = 2 . 3,14 . r
r = 37,68:(2.3,14)
r = 6 cm

20. ##Quiz #106 ##• english version• big point• no spam==========A right triangle has side lengths of 4.5 cm, 6 cm and 7.5 cm, respectively.find the length of the radius of the inner circle and the radius of the outer circle! ​

Jawaban:

•The length of the radius of the inner circle is 1,5 cm

•The length of the radius of the outer circle is 3,75 cm

Penjelasan dengan langkah-langkah:

Known:

a=4,5 cm

b=6 cm

c=7,5 cm

s=½(a+b+c) = ½(4,5+6+7,5)=½(18)=9 cm

L = √s(s-a)(s-b)(s-c) = √9(9-4,5)(9-6(9-7,5) = √182,25 = 13,5 cm²

The length of the radius of the inner circle (r):

[tex]r = \frac{L}{s} \\ r = \frac{13,5}{9} \\ r = 1,5 \: cm[/tex]

The length of the radius of the outer circle (R):

[tex]R = \frac{abc}{4L} \\ R = \frac{4,5 \times 6 \times 7,5}{4 \times 13,5} \\ R = \frac{202,5}{54} \\ R =3,75 \: \: cm[/tex]