Question

. Find the area of the shaded portion.congruence of triangle​

Answer 1

Step-by-step explanation:

From figure , it is right angled triangle

Sides of right angle triangle 10 cm and 30 cm

As they are 4 congruent triangles.

So shaded region is square,

Let ites side be a

By, Pythagoras theorem

a

2

=10

2

+30

2

⇒a

2

=100+900=1000

⇒a=10

10

Therefore, Area of shaded portion =a

2

=(10

10

)

2

=1000 cm

2

solution