Question

The area of a round table is 1386cm2. Find the the length of the radius of the table.​

Answer 1

(1) Area = 1386 cm2

πr2=1386⇒227r2=1386⇒r2=441⇒r=21 cm

Circumference = 2πr=2×227×21=132 cm

Hence, the correct answer is option B.

Answer 2

RADIUS = 21 CENTIMETRES

LENGTH ( CIRCUMFERENCE ) = 132 CENTIMETRES

EXPLANATION IS IN THE PICTURE

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