Question

ABC is an isosceles triangle in which AB = AC. Side BA is produced to D such that
AD= AB. Show that BCD is a right angle.​

Answer 1

Answer:

ABC is an isosceles triangle (given).

Step-by-step explanation:

AB=AC.

side BA produced to D. (given).

then ,

construction=join DC.

when we join DC then .

BCD= 90°.

hence,

BCD is a right angle.