Question

The length of the longest chord in a circle with area 36^ cm2 is

Answer 1

Diameter is the longest chord for any circle.

πr² = 36
22/7 ×r² = 36
r² = 36×7/22
r² = 18 × 7/11
r² = 11.4545454545.....
r = √11.454545..
r = 3.384..

diameter = 2(3.384)
= 6.768..cm