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Published on: 16/09/2019
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Questions + Answers key
Take MCQ Mathematics Test
1.
Give five examples of situations where you need to know the perimeter.
2.
Find the perimeter of a triangle, whose three sides are 5 cm, 6 cm and 7 cm, respectively.
3.
The area of a rectangular carpet 20 m long is 180 sq m. Find the width of the carpet.
4.
Find the areas of the rectangles whose sides are 2 m and 70 cm
5.
Find the areas of the rectangles whose sides are 2 km and 3 km
6.
Find the area of the following figures by counting squares.
โโโโโโโ
7.
Find the area of the following figures by counting squares.
8.
Find the areas of the following figures by counting square.
โโโโโโโ
9.
Find the areas of the following figures by counting square.
โโโโโโโ
10.
Find the areas of the following figures by counting square.
โโโโโโโ
11.
A piece of wire is 12 cm long. What will be the length of each side, if the wire is used to form an equilateral triangle?
12.
A piece of wire is 12 cm long. What will be the length of each side, if the wire is used to form a regular hexagon?
13.
Find the perimeter of the following figures
14.
Find the perimeter of the following figures
15.
If one side of an equilateral triangle is 8 cm, then find its perimeter.
1.
Ex. 1. Perimeter of the top of study table
Ex. 2. Perimeter of a park
Ex. 3. Perimeter of a page of our notebook
Ex. 4. Perimeter of a field
Ex. 5. Perimeter of a wall of a room
2.
Perimeter of a triangle = Sum of its all sides
=a+b+c
=(5+ 6+ 7)cm= 18cm
3.
9 m
4.
The area of the rectangle is 1.40 sq m.
5.
The area of the rectangle is 6 sq km.
6.
28 cm2 (approx.)
7.
24 cm2 (approx.)
8.
Given, figure is covered by 9 full squares, 6 half squares, 6 more than half squares and 4 less than half squares.
∴ Area = \(\left( 9\times 1+6\times \frac { 1 }{ 2 } +6\times 1+4\times 0 \right) sq\quad units\)
= (9 + 3 + 6 + 0) sq units = 18 sq units
9.
Given, figure is covered by 5 full squares.
∴ Area = (5 \(\times\) 1)sq units = 5 sq units
10.
Given, figure is covered by 5 full squares.
∴. Area = 5 \(\times\) 1 sq unit = 5 sq units
11.
4 cm
12.
2 cm
13.
The perimeter of the given figure is 15 cm
14.
The perimeter of the given figure is 52 cm
15.
Perimeter of an equilateral triangle = 3 X Length of side
[โต in equilateral triangle, all sides are equal, so length of each side will be 8 cm]
=3 \(\times\) 8 = 24 cm
Hence, the perimeter of rectangle is 24 cm.
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