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Published on: 29/08/2019
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Questions + Answers key
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1.
The area of the figure in (sq. unit)
is
1
5
4
6
2.
The perimeter of a square, whose each side is 1m 30cm 10 mm, is
5.4 m
5.14 m
5.24 m
5.04 m
3.
The side of a square is 10 cm. How many times will the new perimeter become, if the side of the square is doubled?
2 times
4 times
6 times
8 times
4.
The perimeter of a rectangle, whose sides are 1m 30 cm and 70 cm, is
20 m
4 m
0.2 m
2 m 30 cm
5.
The perimeter of a triangle whose sides are 1.2cm, 3.4 cm and 1.7 cm, is
6.3 cm
6.2 m
6.5 cm
6.4 cm
6.
A square shaped park ABCD of side 100 m has two equal rectangular flower beds each of size 10m \(\times\) 5 m (see the figure). Length of the boundary of the remaining park is
360m
400 m
340 m
460 m
7.
The area of a play ground is 1190 m2 If its length is 35 m, the width is----
8.
Standard unit of area is ------
9.
Diagonal of a square is ------ side
10.
Area of a rectangle with length 5 cm and breadth 3 cm is------
11.
The amount of region enclosed by a plane closed figure is called its --------
12.
Area of a square is doubled if the side of the square is doubled
13.
If length of a rectangle is halved and breadth is doubled, then the area of the rectangle obtained remains same.
14.
Perimeter of rectangle is (l + b).
15.
1 hectare = 100 \(\times\) 100 m2.
16.
If the side of a square is doubled, then its area becomes four times.
17.
18.
19.
20.
1.
Area=2x1+2x1+1x1=5
2.
(c)
5.24 m
3.
(a)
2 times
4.
(b)
4 m
5.
(a)
6.3 cm
6.
(b)
400 m
7.
Area of a play ground = I x b
⇒ 1190=35b ⇒b=\(\frac{1190}{35}=34m\)
8.
We know that, standard unit of area is cm2 or m2.
9.
Diagonal of a square = \(\sqrt2\) x Side
10.
Area = 5 x 3 = 15 sq cm
11.
The region enclosed by a plane closed figure is called its area.
12.
(b)
13.
(a)
14.
(b)
15.
(a)
16.
(a)
17.
( )
10
18.
( )
18
19.
( )
16
20.
( )
20
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