Processing math: 100%
Home / Aptitude Tests / Mathematics / A trapezium of parel...

A trapezium of parellel sides 10cm and 21cm and height 8c...

A trapezium of parellel sides 10cm and 21cm and height 8cm is inscribed in a circle of radius 7cm. calculate the area of the region not covered by the trapezium.

π =227 

A.

84cm2

B.

80cm2

C.

30cm2

D.

94cm2

Correct answer is B

Area of circle = πr2 = 227 * 72 = 154cm2

Area o Trapezium = (a+b)h2(10+21)82 = 124cm2

 

Area of the region not covered = Area of (Circle - Trapezium)

= 154 - 124 

= 30cm2