Question

How do i answer this question

Answer 1

Answer:

Step-by-step explanation:

Given:BEFC is a quarter circle.

Thus,BC=BE=radius of a circle

BC=BE=DC=4.2cm...(Given)

Now,AB=AE+BE

=2+4.2

=6.2cm

ABCD is a trapezium AB||DC and

Angle ABC=90

Thus,area of trapezium

ABCD=AB+CD/2 *BC

=6.2+4.2/2 *4.2=21.84cmsq.

Area of quarter circle =π(BC)sq./4

=22/7*(4.2)sq./4

=22/7*17.64/7*4

=13.86cmsq.

Thus,area of shaded region

=(21.84-13.86)cmsq.

=7.98cm sq..

Hope it helps you...

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