Question

HERON'S FORMULA
3. 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
- 11 m -
KEEP THE PARK
GREEN AND CLEAN​

Answer 1

Answer:

s = 15+11+6/2

32/2 = 16

area = sq.root (16)(16-15)(16-11)(16-6)

sq.root(16)(1)(5)(10)

sq.root 2×2×2×2×5×2×5

20sq.root 2