1. Find the circumference of a quadrant of a circle whose area is 154 cm
Answers
Answered by
2
Answer:
Step-by-step explanation:
Area of circle = 154
πr×r=154
22\7×r×r =154
r×r=154×7/22
r×r = 7×7
r =√ 49
r= 7cm
Circumference of circle = 2πr
= 2×22/7×7
=2×22
=44 cm
Answered by
0
Answer:
44
Step-by-step explanation:
area of circle = πr^2
154 = 22/7×r^2
r^2 = 154×7/22
r^2= 7×7
r=7
circumfrence of circle= 2πr
= 2×22/7×7
= 44 ans
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