Page 247 - ICSE Math 7

3. Fill in the blanks.
(a) The area of a square of side 4 cm is ____________.

(b) If one side of a parallelogram whose perimeter is 42 cm is 12 cm, the measure of its adjacent
side is ____________.
(c) The unit of measurement of area is ________________ while that of perimeter is ____________.
(d) If a circle touches all the sides of a square, then the circle is said to be ____________ in the
square and its area is ____________ than that of the square.
(e) Circumference of a circle is ____________ times its diameter.

PRACTICE TIME

1. Calculate the area of the shaded part of the given figure. 14 cm

14 cm

2. Find the area of the shaded region in the following figure. 8 cm
(Take p = 3.14) 6 cm

10 cm

28 cm
3. Find the area of the shaded region in the figure given alongside.

8 cm

4. How many square tiles each of side 20 cm are required to cover the floor of a hall which is
7.2 m long and 5.8 m wide. Also find the cost of the tiles required to cover the floor at the rate
of ` 276 per dozen.
S R
4 cm
5. Find the area of quadrilateral PQRS as shown in the adjoining 12 cm
figure. P 8 cm

Q

6. Calculate the area and perimeter of the given figure where the 14 cm
circular parts are semicircles.

8 cm

233