Question

HSFORM
3. There is a slide in a park. One of its side walls has been painted in some colour with
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
СИ
11 m
KEEP THE PARK
GREEN AND CLEAN
15 m​

Answer 1

Answer:

Here ,s is called semi perimeter of a triangle. The formula given by Heron about the area of a triangle is known as Heron's formula. Where a, b and c are three sides of a triangle and s is a semi perimeter. ... Hence, the area painted in colour is 20√2 m².