Question

plz solve for me whole sum

Answer 1

a)
area of triangle=1/2*base*height
87=1/2*15*h
h=11.6cm
b)
1256=1/2*b*31.4
b=80
c)
170.5=1/2*22*h
h=15.5

i hope
this help you

Answer 2

here is your answer

hope this will help you