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
The diameter of a circle is
  • A
    \({\text{2}}\pi {\text{r}}\)
  • B
    2r
    Correct
  • C
    \({{\text{r}}^{\text{2}}}\)
  • D
    None of these
2
Which of the following is an example of circle?
  • A
    a chair
  • B
    a table
  • C
    a cup
  • D
    a bottle cap
    Correct
3
The area of a circle is
  • A
    \(\pi {\text{r}}\)
  • B
    \(\pi {{\text{r}}^{\text{2}}}\)
    Correct
  • C
    \({\text{2}}\pi {{\text{r}}^{\text{2}}}\)
  • D
    \({\text{2}}\pi {\text{r}}\)
4
1 \({{\text{m}}^{\text{2}}}\) = __________ .
  • A
    None of these
  • B
    1000 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • C
    10000 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • D
    100 \({\text{c}}{{\text{m}}^{\text{2}}}\)
    Correct
5
One hectare is equal to
  • A
    1000 \({{\text{m}}^{\text{2}}}\)
    Correct
  • B
    10000 m
  • C
    10000 \({{\text{m}}^{\text{2}}}\)
  • D
    1000 \({{\text{m}}^{\text{2}}}\)
6
The circumference of a circle with radius 7 cm is
  • A
    44 cm
    Correct
  • B
    33 cm
  • C
    \(\pi \)cm
  • D
    22 cm
7
The value of constant p is
  • A
    None of these
  • B
    \(\frac{{22}}{7}\)
    Correct
  • C
    31.4
  • D
    314
8
The area of a circle is 49\(\pi {\text{c}}{{\text{m}}^{\text{2}}}\). Its circumference is
  • A
    14\(\pi \) cm
    Correct
  • B
    None of these
  • C
    7\(\pi \) cm
  • D
    21\(\pi \) cm
9
The perimeter of circular field is 242 cm. The area of the field is
  • A
    4658.5 \({\text{c}}{{\text{m}}^{\text{2}}}\)
    Correct
  • B
    None of these
  • C
    9317 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • D
    18634 \({\text{c}}{{\text{m}}^{\text{2}}}\)
10
The area of a circle is 38.5 \({\text{c}}{{\text{m}}^{\text{2}}}\). Its circumference is
  • A
    33 cm
  • B
    22 cm
    Correct
  • C
    44 cm
  • D
    None of these
11
The difference between the circumference and radius of a circle is 37 cm. The area of the circle is
  • A
    154 \({\text{c}}{{\text{m}}^{\text{2}}}\)
    Correct
  • B
    None of these
  • C
    37.5 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • D
    77 \({\text{c}}{{\text{m}}^{\text{2}}}\)
12
The circumference of two circles are in the ratio 2:3. The ratio of their areas is
  • A
    It is 4:9
    Correct
  • B
    It is 5:9
  • C
    It is 9:4
  • D
    It is 4:5
13
On increasing the diameter of circle by 40\(\% \), its area will be increased by
  • A
    None of these
  • B
    10\(\% \)
  • C
    96\(\% \)
    Correct
  • D
    85\(\% \)
14
A rectangle has a length of 6 cm and diagonal 10 cm, find the width of the rectangle?
  • A
    9 cm
  • B
    12 cm
  • C
    8 cm
    Correct
  • D
    16 cm
15
Find the area of the triangle:
Question 15 figure 1
  • A
    18 \({\text{c}}{{\text{m}}^{\text{2}}}\)
    Correct
  • B
    None of these
  • C
    16 \({\text{c}}{{\text{m}}^{\text{2}}}\)
  • D
    14 \({\text{c}}{{\text{m}}^{\text{2}}}\)