The radius of a circular plate is measured as 12.65 cm instead of the actual length 12.5 cm. Find the absolute Checkerror in calculating it's area. answers for TN state board 12th maths book no. 2 sums

Susai Raj's image
Susai Raj
Sept. 22, 2019, 2:10 p.m.

Answers!

Susai Raj's image
Susai Raj
Sept. 22, 2019, 2:19 p.m.

A = πr^2

∆A = 2πr.∆r = 2π×12.5 × 0.15 = 3.75.  Is it correct

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