find the area of cirice if its circumferenc is 88cm.
Answers
Answered by
4
Answer:
616cm^2
Step-by-step explanation:
circumference of circle= 2πr
2πr = 88cm
r = 88×7/22×2
r = 14cm
so,
area = πr^2
= 22/7×14×14
= 616cm^2
Answered by
1
Solution!!
The circumference of a circle is given. We have to find the area. We will use the circumference formula to find out the radius of the circle. We can easily find out the area after we know the radius.
Circumference = 88 cm
Circumference = 2πr
88 cm = 2 × (22/7) × r
88 cm = (44/7) × r
88 cm × (7/44) = r
2 cm × 7 = r
r = 14 cm
Radius = 14 cm
Area = πr²
Area = (22/7) × (14 cm)²
Area = (22/7) × 14 cm × 14 cm
Area = 22 × 2 cm × 14 cm
Area = 616 cm²
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