Answer:

Step-by-step explanation:
The sum of the interior angles of any polygon with five sides is equal to
. Therefore, we can set up the following equation and solve for
:

Go with what u think will help u
1/2*bh=75
1/2*bb=75
b^2=150
b=rt(150)=12.2
not sure what you mean by link, but 12.2 is approximately the length you're seeking
Area formula for a triangle is 1/2BxH
B=15
H=10
1/2(15)= 7.5
7.5 x 10= 75
So the area is 75 square cm :)