Question

Find the fiameter of a cirvle whose area is 154cm²

Answer 1

Answer:

7 cm

Step-by-step explanation:

pi r×r= 154

r×r= 154×(7/22)

r×r= 49

r=7 cm

Answer 2

D=?

A=154

Assuming d as x

Then r is x/2

πr×r

22/7×x×x=154

X sq.= 154×7/22=49

X = √49

7

There fore radius is 7

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