Question

There is a slide in a park. One of its side walls has been painted in some colour wi
message "KEEP THE PARK GREEN AND CLEAN" (see Fig. 8.10 ). If the sides o
wall are 15 m, 11 m and 6 m, find the area painted in colour.​

Answer 1

Step-by-step explanation:

where's the diagram named 8.10??

Answer 2

Answer:

$20\sqrt{2}$

Step-by-step explanation:

Perimeter=s+s+s

                =15+11+6

                 =32m

Semi-Perimeter=Perimeter/2

=32/2=16m

Area=$\sqrt{s(s-a)(s-b)(s-c)}$

=$\sqrt{16(16-15)(16-11)(16-6)}$

=$\sqrt{16(1)(5)(10)}$

=$\sqrt{2^{4} *1^{2}* 5* 2* 5 }$

=$\sqrt{2^{4}*1^{2}*5^{2} *2^{1} }$

=$2^{2}*1*5\sqrt{2}$

=$4*1*5\sqrt{2}$

=$20\sqrt{2}$

And yo mark me the brainliest