Page 118 - Revised Maths Wisdom Class - 6

116 MATHS

3. What is the perimeter of an equilateral triangle of side 7 metres?
4. Area of a square with perimeter 80 cm will be _________.

5. If length and breadth of a rectangle are doubled then, its area is increased by how much?
6. Area of rectangle of dimensions 20 cm × 15 cm is _________.
7. Formula for finding the length of a rectangle, when its area and breadth are given, is _________.
8. Find the perimeter of an isosceles triangle whose base is 6 cm and two equal sides are 7.5 cm.
9. What do we need to find if we have to lace around a saree?

10. Which paper is used to find the area of irregular shapes?

B Multiple ChOiCe QuestiOns Multiple ChOiCe QuestiOns

1. Area of a square of side 25 cm is:
(a) 100 m (b) 625 cm (c) 625 m (d) 100 cm 2
2
2
2
2. Which has greater perimeter, a square of side 5 cm or a rectangle of side 5 cm and 3 cm?
(a) square (b) rectangle (c) none of these
3. The perimeter of a triangle whose sides are 43 mm, 62 mm and 75 mm is:

(a) 10.525 cm (b) 21 cm (c) 18 cm (d) 85.5 cm

4. If each side of a square with side 16 m is halved, then its area reduces by:
(a) 64 m (b) 738 m (c) 192 m (d) 256 m 2
2
2
2
5. The cost of putting a fence around a square field at ` 27 per metre is ` 5292. The length of each side of the
field is:
(a) 98 m (b) 122.5 m (c) 196 m (d) 49 m
6. The number of square tiles of side 50 cm which can be paved on a rectangular floor of 2 m × 1.5 m is:

(a) 12 (b) 60 (c) 40 (d) 24
7. The area of glass required for a window which has 16 panes each measuring 25 cm × 16 cm is:

(a) 0.56 m (b) 0.60 m (c) 0.48 m (d) 0.64 m 2
2
2
2
8. To calculate side of a square when perimeter is given, we divide perimeter by:
(a) 4 (b) 6 (c) 2 (d) 8
9. Perimeter of a regular nonagon is 99 cm, its side will be:
(a) 9 cm (b) 11 cm (c) 44 cm (d) 22 cm

10. If the area of rectangular plot is 15 ha and its breadth is 300 m, then the distance covered by a girl in walking
around it is:

(a) 800 m (b) 1 km 600 m (c) 3 km 200 m (d) 1 km 200 m

C Fill in the Blanks Fill in the Blanks

1. The area of a rectangle is _________ .
2. The area of a square field is 324 m . Then the perimeter of the square is _________ cm.
2
3. The length and breadth of a rectangle are in the ratio of 2 : 1. If its breadth is 20 m, then its perimeter is
_________.