Question

sir ji please question number is 6

Answer 1

Area of triangle is =1/2*base height
=1/2*40*40
=20*40=800cmsquare

Thanks for asking

Answer 2

here,
I think the isosceles triangle is right angled..
If so,
area =1/2 x base x height
=1/2 x 40 x 40 = 800 cm^ 2
plz check the answer.