Study the adjoining picture and answer the following questions:

The area of ΔABF is.

$180m^2$ $90m^2$ $125m^2$ $60m^2$

$90m^2$

Here, we have right angle triangle ABF, where BF (base) = 10m, and AB (height) = AC - BC = 25 - 7 = 18m Area of ΔABF = \(\frac{1}{2}\) × base × height = \(\frac{1}{2}\) × BF × AB = \(\frac{1}{2}\) × 10 × 18 = 90m2