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 = 56cmFind 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. 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
5. 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
6. 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
7. A circle has an area of M cm2 and a circumference of N cm.if m/n=20,then the radius of circle is cm
Sebuah lingkaran memiliki Arean dari M cm2 dan lingkar N cm. jika m / n = 20, maka jari-jari lingkaran adalah cm
itu artinya
8. 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
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. 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]
11. 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
12. 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 stepCircumference 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
13. The circumference of circle is 248 a. circle radius b. area of the circle
Diketahui:
The circumference of ⭕ = 248Ditanya:
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 ☻
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. 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 !
16. 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
17. 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
18. 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
19. The figure shows a quarter circle with radius 7 cm. What is the perimeter of the quarter circle?
r = 7 cm
1/4 p = ( 1/4 x π x 2 x r ) + 2r
(1/2 x 22/7 x 7 cm) + 14 cm
11 cm + 14 cm = 25 cm
20. 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:)
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