Question

π r^2 =154 m^2 then circumference is what

Answer 1

$<b>Answer :</b>$

44 m



$<b>Step-by-step explanation :</b>$

πr² = 154 m²

$<b>π = 22 / 7</b>$

22 / 7 × r² = 154

r² = ( 154 × 7 ) / 22

r² = 49

r² = 7²

r = 7

$<u>radius = 7 m</u>$

$<b>Circumference = 2πr</b>$

= 2 × 22 / 7 × 7

= $<u>44 m</u>$

Answer 2

Area of ∆ = 154m^2
π r^2 = 154
22/7 ×r^2 = 154
r^2 = 154×7/22
r^2 = 49
r = √49
r = 7m

Now, the circumference of a circle = 2πr
= 2×22/7× 7
= 44m

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