MENSURATION AREA PROBLEMS WITH INSCRIBED SHAPES WORKSHEET

Problem 1 :

The area of the circle that can be inscribed in a square of side 6 cm is :

a) 36π cm2     (b) 18π cm2  (c) 12π cm2      (d) 9π cm2 

Solution

Problem 2 :

The area of the square that can be inscribed in a circle of radius 8 cm is :

(a) 256 cm2      (b) 128 cm2      (c) 64 2 cm2     (d) 64 cm2 

Solution

Problem 3 :

Area of the largest triangle that can be inscribed in a semi-circle of radius r units is :

a) r2 sq.units     b) (1/2) r2 sq.units   c) 2r2 sq.units

d) √2 r2 sq.units

Solution

Problem 4 :

The circumference of the circle is 100 cm. Find the side of the square inscribed in the circle

Solution

Problem 5 :

The area of the circle that can be inscribed in a square of the side 6 cm is 

Solution

Problem 6 :

In the figure, a circle is inscribed in a square of side 6 cm and another circle is circumscribing the square. Is it true to say that area of the outer circle is two times the area of the inner circle? Give reasons for your answer

inscrined-shapes-q4.png

Solution

Problem 7 :

The area of a circle inscribed in an equilateral triangle is 154 cm2. Find the perimeter of the triangle

inscrined-shapes-q5.png

Solution

Answer Key

1)  area of the required circle is 9π cm2.

2)  Area of the square = 128 cm2

3)  (1/2) r2 square units

4)  32 cm

5)  9π cm2

6)  Area of smaller circle = π square units 

Area of larger circle = 18 π square units

7) Perimeter of the triangle =  42√3 cm

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