Class 7 Perimeter And Area CBSE Questions & Answers

Class 7 · Perimeter And Area

This is Mathematics Class 7 Perimeter and Area CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
A rectangular field has dimensions 84 m by 37 m. Find the cost of fencing its boundary at the cost of Rs 2.50/m. What will be the cost of digging the entire field at the cost of Rs 15/ \({{\text{m}}^{\text{2}}}\).
  • A
    Rs 66,620
  • B
    None of these
  • C
    Rs 40,620
  • D
    Rs 46,620
    Correct
2
One – fourth of the perimeter of a square gives the _______.
  • A
    diagonal of the square
  • B
    None of these
  • C
    side of the square
    Correct
  • D
    area of the square
3
1 \({\text{c}}{{\text{m}}^{\text{2}}}\)= _____ \({{\text{m}}^{\text{2}}}\)
  • A
    0.001
  • B
    0.0001
    Correct
  • C
    0.01
  • D
    None of these
4
Area of parallelogram = ___________.
  • A
    None of these
  • B
    Base \( \times \) Height
    Correct
  • C
    Base - Height
  • D
    Base + Height
5
From a circular card sheet of radius 14 cm, two circles of radius 3.5 cm and a rectangle of length 3 cm and breadth 1 cm are removed (as shown in the figure). Find the area of the remaining sheet. (Take \(\pi = \frac{{22}}{7}\))
Question 5 figure 1
  • A
    None of these
  • B
    580 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • C
    500 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • D
    536 \({\text{c}}{{\text{m}}^{\text{2}}}\)
    Correct
6
The side of a square is 4 cm. Find the area of the triangles formed by joining all of its diagonals.
  • A
    10 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • B
    6 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • C
    8 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • D
    4 \({\text{c}}{{\text{m}}^{\text{2}}}\)
    Correct
7
The sides of the parallelogram ABCD are 16 cm and 13 cm. If AP and CQ are respectively perpendicular to BC and AB; find AP and CQ .The area of parallelogram is 1040 \({\text{c}}{{\text{m}}^{\text{2}}}\).
Question 7 figure 1
  • A
    AP = 50 cm, CQ = 80 cm
  • B
    AP = 65 cm, CQ = 100 cm
  • C
    None of these
  • D
    AP = 65 cm, CQ = 80 cm
    Correct
8
On decreasing the radius of the circle by 30\(\% \), its area is decreased by
  • A
    510\(\% \)
    Correct
  • B
    60\(\% \)
  • C
    45\(\% \)
  • D
    None of these
9
The area of the square is the same as the area of the circle. Their perimeter are in the ratio
  • A
    None of these
  • B
    \(\pi :2\)
  • C
    \(2:\pi \)
  • D
    \(2:\sqrt \pi \)
    Correct
10
The areas of the two circle are in the ratio 4 : 9. The ratio of their circumference is
  • A
    it is 1:2
  • B
    it is 3:2
  • C
    None of these
  • D
    it is 2:3
    Correct
11
In making 1000 revolutions, a wheel covers 88 km. The diameter of the wheel is
  • A
    84 m
  • B
    14 m
  • C
    28 m
    Correct
  • D
    42 m
12
The diameter of a wheel is 40 cm. How many revolutions will it make an covering 176 m?
  • A
    240
  • B
    300
  • C
    140
    Correct
  • D
    None of these
13
The radius of wheel is 0.25 m. How many revolutions will it make in covering 11 km?
  • A
    7000
    Correct
  • B
    1400
  • C
    2800
  • D
    None of these
14
Find the circumference of a circle of diameter 21 cm.
  • A
    None of these
  • B
    66 cm
    Correct
  • C
    44 cm
  • D
    22 cm
15
Find the area of a circle whose circumference is 52.8 cm.
  • A
    221.76 \({\text{c}}{{\text{m}}^{\text{2}}}\)
    Correct
  • B
    200.76 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • C
    220.76 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • D
    None of these