Two congruent figures (i.e., figures having the same size and shape) have equal areas.
True
False
If the area of a rectangle and a square are equal, then the perimeter of the rectangle is less than that of the square.
True
False
If a square lies inside a rectangle, then the area of the square is less than that of the rectangle.
True
False
Cost of levelling a rectangular plot is obtained by multiplying area of the rectangle with per unit cost of levelling.
True
False
Of all rectangles with a given perimeter, a square has the minimum area.
True
False
Click the correct answer.
If the measure of a side of a regular octagon is 6 cm, then what is its perimeter?
48 cm
36 cm
54 cm
56 cm
If a 20 m long ribbon is stitched around a table cloth making two rounds along its boundary, then what is the perimeter of the table cloth?
40 m
20 m
15 m
10 m
The area of an irregular closed figure drawn on the squared paper is to be estimated. What is the contribution of 5 squares which are less than half-filled and of side 1 cm each?
10 cm2
5 cm2
2.5 cm2
0 cm2
The area of an irregular closed figure drawn on the squared paper is to be estimated. What is the contribution of 8 squares which are more than half-filled and of side 1 cm each?
0 cm2
4 cm2
8 cm2
16 cm2
The length of a rectangle is doubled and its breadth is halved. What is the change in its area?
It remains the same
It becomes half
It doubles
It becomes one-fourth
The cost of flooring at ₹ 20 per square metre is ₹ 4,200. If the length of the room is 21 m, then what will be its breadth?
5 m
10 m
15 m
20 m
If the area of a square is numerically equal to its perimeter, then what will be the length of each side?
2 units
3 units
4 units
5 units
Which one is true for two plane figures A and B that coincide with each other?
They have equal areas
They have equal perimeters
They have equal area and perimeter
They have different area and perimeter
Click the correct answer.
The area of a closed figure is measured in
.
square units
units
cubic units
The area of a square whose each side measures p cm is
cm2.
p2
2p2
4p
A circle can always be inscribed in a
polygon.
regular
irregular
rectangle
tiles each of length 9 cm and breadth 4 cm will cover a rectangular region measuring 243 cm × 124 cm.
837
858
785
The region enclosed by a plane closed figure is called its
.
area
length
perimeter
The area of a rectangle of length 9 cm and breadth 6 cm is
.
