Question

please solve this. ​

Answer 1

here in triangle ABO

By pytha. thm.

H^2 = B^2 + P^2

H^2 = 12^2 + 5^2

H^2 = 144 +25

H^2 = 169

H = 13

=> AB = 13 cm

Now in triangle ABC

Sides are

a=15

b=14

c=13

Semi perimeter (s) =15+14+13/2

=21cm

now area of ABC

______________

=√s(s-a)(s-b)(s-c)

__________

=√21×6×7×8

___________________

= √3×7×3×2×7×2×2×2

= 3×7×2×2

= 21×4

area of ABC = 84 cm^2

area of triangle ABO = 1/2×b×h

=1/2×24×5

= 60 cm^2

thus are of shaded region = 84-60

=24 cm^2