Q1 of 68 Page 15

A plot is in the form of a rectangle ABCD having semi-circle on BC as shown in Fig.15.64. If AB=60m and BC=28m, find the area of the plot.

Given,


AB = 60m


BC = 28m


Area of rectangular portion = 28m×60m = 1680m2


Diameter of semicircle = length of side BC


Radius =


Area of semicircle =


Total area of plot = 1680+308 = 1988m2


More from this chapter

All 68 →
4

A chord 10cm long is drawn in a circle whose radius is cm. Find area of both the segments.

 5

A chord AB of a circle, of radius 14 cm makes an angle of 60° at the centre of the circle. Find the area of the minor segment of the circle.

 2

A play ground has the shape of a rectangle, with two semi-circles on its smaller sides as diameters, added to its outside. If the sides of the rectangle are 36m and 24.5m, find the area of the play ground..

 3

The outer circumference of a circular race-track is 525m. The track is everywhere 14m wide. Calculate the cost of leveling the track at the rate of 50paise per square meter