Question

The sides of a right-angled triangle are 12 cm, 16 cm, 20 cm respectively. A new right angle Δ is made by joining the midpoints of all the sides. This process continues for infinite then calculate the sum of the 2s of all the triangles so made.
A) 312 sq.cm
B) 128 sq.cm
C) 412 sq.cm
D) 246 sq.cm

Answer 1

Answer: B

Explanation:

Area of triangle= ½*12*16 =96

Sum of area = (96)/(1 - ¼)= 128

Answer 2

heya..

Here is your answer...

The sides of a right-angled triangle are 12 cm, 16 cm, 20 cm respectively. A new right angle Δ is made by joining the midpoints of all the sides. This process continues for infinite then calculate the sum of the 2s of all the triangles so made.

B) 128 sq.cm

It may help you... ☺☺