Question

From a circular card sheet of radius 28cm, two circle of radii 7 cm and a rectangle of length 3cm and breadth 2 cm are removed. Find the area of the remaining sheet

Answer 1

Answer:

Area of remaining sheet = 2150cm^2

Step-by-step explanation:

areaof circular sheet = πr^2

= 22/7 ×28×28

=2464cmsq.

area of two circles of radius 7 cm= 2πr^2

= 2×22/7×7×7

=308cmsq.

area of rectangle= l×b

=3×2

= 6 cmsq.

area of remaining sheet = area of circular sheet -(area of two circles+ area of rectangle)

area of remaining sheet = 2464-(308+6)

=2464-314

=2150 cmsq.