Question

Prove that the Triangle formed by joining the midpoints of the sides of a right - angled triangle is also right - angled.

Answer 1

see the diagram and the what is written in it properly....

Answer 2

Step-by-step explanation:

DF || BE

DF = BE

DB || FE

DB = FE

By the defination of rectangle ∆BEF is a rectangle. And therefore angle B = angle F

(opposite angles of a rectangle , 90°)

So, ∆DEF is right angled triangle.