Study the adjoining picture and answer the following questions:
The area of ΔABF is.
Answer & explanation
Correct answer: option 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