Question

the base and the hypotenuse of a right angled triangle are 12 cm and 20 cm. find its perimeter and area.

Answer 1

In ΔABC,

(AC)² = (AB)²+(BC)²                (Pythagoras theorem)

(20)² = (12)²+(BC)²

(BC)² = 400-144

BC = √256

BC = 16 cm

Perimeter = (12+16+20) cm

= 48 cm

Area of ΔABC = 1/2*b*h

= (1/2*12*16) cm²

= 96 cm²

Answer 2

ans..

you can see your ans. in above image.