Question

. From a circular card sheet of radius 7 cm, two squares of side 1 cm each, a right triangle of sides
1 cm and 1.5 cm and a rectangle of length 2 cm and breadth 1 cm have been cut. Find the area of
the remaining portion of the circle.​

Answer 1

Step-by-step explanation:

Area of sheet =πr2=722×14×14

=616cm2

Area of 2 small circles =2×π×3.5×3.5

=77cm2

Area of rectangle =3×1

=3cm2

Remaining Area =616−(77+3)

=536cm2.

Answer 2

Answer:

149.25

Step-by-step explanation:

Area of sheet= πr^2

= 22/7×7×7

= 154cm^2

Area of 2 square= Side × Side × 2

= 1× 1 × 2

= 2cm^2

Area of right triangle= ab/2= 1×1.5/2= 0.75cm^2

Area of rectangle= L×B = 2×1 = 2cm^2

Sum of the shapes= 2+0.75+2

= 4.75 cm^2

Area of the remaining portion= 154 - 4.75

= 149.25cm^2