Question

Q.1 what is the area of an isosceles triangle with base 81cm height 312cm?

Answer 1

Base = 81 cm and height = 312 cm
Area of an isosceles triangle = $\frac{1}{2}\times \mathrm{base}\times \mathrm{height}=\frac{1}{2}\times 81\times 312=12636{\mathrm{cm}}^2$