Q 9 ans 8 cm2
Plz ans fast no links
Q.9. ABC is a triangle in which AB = AC = 4 cm and $\angle A=90°$. Calculate the area of $△$ABC.

The triangle ABC is right angled at A
AB=AC= 4 cm
base= 4cm
height= 4cm
So,
the area of a right angled triangle = 1/2 * base * height
=1/2 * 4* 4
=8cm square