Question

. There is a slide in a park. One of its side walls has been painted in some colour with a message “KEEP THE PARK GREEN AND CLEAN” (see Fig. 12.10 ). If the sides of the wall are 15 m, 11 m and 6 m, find the area painted in colour.


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

Answer 1

4320

1/2 × 18 × 10 = 90

90 × 48 = 4320