The face of a clock has a circumference of 63 in. What is the area of the face of the clock? (Hint: 1st - Find diameter by using d = C ➗ , then find the radius by using r = d ➗ 2, last find area using A = r2)
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answer:-As we know that circumference of the circle is given as-
Circumference =2πr
Given:-
Circumference of the circle =31.4cm
∴2πr=31.4
⇒2×3.14×r=31.4
⇒r=5cm
Now again as we know that the area of the circle is given as-
Area =πr
2
⇒ Area =3.14×(25)
2
=78.5cm
2
Hence the radius and area of the circle is 5cm amd 78.5cm
2
respectively.
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Answer:
If the face of a clock has a circumference of 63 in then the area of the face of the clock is 315.715 sq. in 315.715 sq. in.
Step-by-step explanation:
Given: The circumference of the clock = 63 inch.
Find : The area of the face of the clock.
Formula:
Area of circle =
The circumference of circle =
Now find the area of the circle
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