Question

hey mate here is the question.
Sum no :-9

Answer 1

27
72÷2=36
h^2-b^2=p^2
so, p =√45^2-36^2
27

Answer 2

first take out the area using formula
$\sqrt{s{s - a} {s - b}{s - c}$
then base is given and use formula half×base×height

s= half of perimeter