Question

The hypotenuse of a right angled isosceles triangles is 5 cm. Find its area.
(a) 6.25 cm? (b) 6.5 cm( c )12.5 cm?
answer is b I will make brainiest​

Answer 1

given: hypotenuse=5 cm

since isosceles right angle triangle

therefore, let one of the side be X

according to Pythagoras theorem

X²+X²=(perpendicular)²

X²+X²=5²

2.X²=25

X²=12.5

(side)²=12.5

we know that the area of a right angle triangle is base×height.

side the given triangle is isosceles, the area will be (side)²

hence area of triangle is 12.5 cm²