Find the area of a triangle two sides of which are 18cm and 10cm and the perimeter is 42cm.

Find the area of a triangle two sides of which are 18 cm and 10 cm and the perimeter is 42cm.

Find the area of a triangle two sides of which are 18 cm and 10 cm and the perimeter is 42 cm.

Find the area of a triangle two sides of which are 18 cm and 10 cm and the perimeter is 42 cm.

Find the area of triangle two sides of which are 18 cm and 10 cm and the perimeter is 42 cm.

Find the area of a triangle,two sides of which are 8cm and 11cm and the perimeter is 32cm

Find the area of a triangle, two sides of which are 8 cm and 11 cm and the perimeter is 32 cm

Find the area of a triangle, two sides of which are 8 cm and 11 cm andthe perimeter is 32 cm

Find the area of a triangle, two sides of which are 8 cm and 11 cm and the perimeter is 32 cm (see Fig. 12.6).