Area and Perimeter Practice Test 4

Question : 35 of 40

Marks: +1, -0

A boy walked diagonally across a square lot. What was the per cent saved approximately by not walking through the edges?

Solution:

Let side of the square lot = x m; then diagonal =

√{2}x

= 1.41x m
Hence, required percentage =

{2x-1.41x}/{x} × 100

{0.59}/2 × 100

~ 30 %

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