There is a hexagon MNOPQR of side 5 cm (Fig 11.20). Aman and Ridhima divided it in two different ways (Fig 11.21). Find the area of this hexagon using both ways.

There is pentagonal shaped park as shown in the figure. For finding its area Jyoti and Kawita divided it in two different ways. Find the area of this park using both ways. Can you suggest some other way of finding its area?

There is a pentagonal shaped park as shown in the figure.For finding its area Jyoti and Kavita divided it in two different ways. Find the area of this park using both ways .Can you suggest some another way of finding its area?

Find the area of quadrilateral PQRS shown in Fig 11.11.

In fig., a square OABC is inscribed in a quadrant OPBQ. If OA = 20 cm, find the area of the shaded region.

Using integration, find the area of the region bounded by : (-1,1), (0,5) and (3,2).

The equations of two sides of a triangle are 3x-2y+6=0\ a n d\ 4x+5y-20\ a n d\ the orthocentre is (1,1). Find the equation of the third side.

A brooch is made with silver wire in the form of a circle with diameter 35 mm.The wire is also used in making 5 diameters which divide the circle into 10 equal sectors as shown in Fig. 12.12. Find : (i) the total length of the silver wire required, (ii) the area of each sector of the brooch.

In Fig. 12.31, a square OABC is inscribed in a quadrant OPBQ. If OA = 20cm, find the area of the shaded region.(Use pi=3.14 )