Question

26. In the given figure a sqaure OABC
is incribed is a Quadrant OPBQ
If OA=20cms, find the area of the shaded
region. [use = 3.14]​

Answer 1

Answer:

228cm²

Step-by-step explanation:

Area of square OABC=l²=20²=400cm²---(1)

To Find The Radius join OB

Now by applying Pythagoras in triangle OAB,We Get,

OA²+AB²=OB²

=400+400=OB²(as OABC Is a square And OA=AB=20)

Let OB²=r²

Area of quadrant =1/4*π*r²

=1/4*314/100*800

=628cm²-----(2)

Now Area Of Shaded Region =(2)-(1)

=628-400

=228cm²