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

Answer 1

Answer:

a=15

b=11

c=6

s= a+b+c/2

=32/2

s =16

area of triangle

=√s(s-a)(s-b)(s-c)

= √16×1×5×10

= √2×2×2×2×5×2×5

= 2×2×5√2

=20√2

that is answer is right ok