Area and Perimeter Practice Test 4

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Question : 16 of 40

Marks: +1, -0

The sides of a rectangle are 8 cm and 6 cm. The corners of the rectangle lie on a circle. Find the area of circle without the rectangle.

30 $cm^2$
30.6 $cm^2$
32.4 $cm^2$
36 $cm^2$

Solution:

Radius of the circle =

√{8^2+6^2}/2

=

{10}/2

= 5 cm

Required area =

{22}/7 × 5^2 -8 × 6

= 78.6 – 48 = 30.6

cm^2

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