The length of hypotenuse of a right angle isosceles triangle is 10 cm. Its area will be:
Answer & explanation
Correct answer: option 3
In Δ ABC:
⇒ AB2 + BC2 = AC2
⇒ x2 + x2 = 100
⇒ 2x2 = 100
⇒ x2 = 50
Area = \(\frac{1}{2}\) × x2 = \(\frac{1}{2}\) × 50 = 25 sq.cm