Area and Perimeter Practice Test 4

Question : 21 of 40

Marks: +1, -0

A sheet of paper is in the form of a rectangle ABCD in which AB = 40 cm and BC = 28 cm. A semi circular portion with BC as diameter is cut off. Find the area of remaining paper.

800 $cm^2$
812 $cm^2$
825 $cm^2$
850 $cm^2$

Validate

Solution:

Area of remaining paper = 40 × 28 –

1/2 × {22}/7

× 14 × 14
= 1120 – 308
= 812

cm^2

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