Q1: Find the perimeter of each of the following figures:
(i) Perimeter of the triangle is ______ cm.Ans: 14
(ii) Perimeter of the square is ______ cm.
Ans: 16
(iii) Perimeter of the square is ______ cm.
Ans: 28
(iv) Perimeter of the rectangle is ______ cm.
Ans: 26
(v) Perimeter of the triangle is ______ cm.
Ans: 19
(vi) The perimeter of the rectangle is ______ cm.
Ans: 20
Q2: In the following figures, assume that each small square is 1 sq cm. Count the squares and find the area:
(i) Area = ______ sq cm.
Ans: 18
(ii) Area = ______ sq cm.
Ans: 8
(iii) Area = ______ sq cm.
Ans: 8
(iv) Area = ______ sq cm.
Ans: 49
(v) Area = ______ sq cm.
Ans: 16
Q3: Find the area of the rectangle, whose:
(i) length = 5 m 8 cm, breadth = 3 m 75 cm
Ans: 5.8 x 3.75 = 21 m 75 cm
(ii) length = 4 m 50 cm, breadth = 2 m 7 cm
Ans: 4.50 x 2.7 = 12 m 15 cm
(iii) length = 1 m 5 cm, breadth = 90 cm
Ans: 1.5 x 90 = 1 m 35 cm
(iv) length = 125 m, breadth = 84 m
Ans: 125 x 84 = 10500 m
(v) length = 80 cm, breadth = 24 cm
Ans: 80 x 24 = 1920 cm
Q4: Find the perimeter of:
(i) The triangle whose sides are 8 em, 9 cm, and 12 cm.
Ans: Perimeter = 8 + 9 + 12 = 29 cm
(ii) The square whose side is 14 cm.
Ans: Perimeter = 4(14) = 56 cm
Q5: Find the area of the following rectangles:
(i)
Ans: Area of rectangle = l x b
= 10 x 15 = 150 cm
(ii)
Ans: Area of rectangle = l x b= 2 x 5 = 10 cm
Q6: Find the area of the square, whose:
(i) side = 256 dm
Ans: 256 x 256 = 65536 dm
(ii) side = 92 dm
Ans: 92 x 92 = 8464 dm
(iii) side = 18m
Ans: 18 x 18 = 324 m
(iv) side = 7 cm
Ans: 7 x 7 = 49 cm
(v) side = 20 cm
Ans: 20 x 20 = 400 cm
Q7: Find the area of the following squares:
Area of square = side x side
(i)
Ans: 20 x 20 = 400 cm
(ii)
Ans: 6 x 6 = 36 cm
30 videos|110 docs|30 tests
|
1. What is the difference between perimeter and area? |
2. How do you calculate the perimeter of a rectangle? |
3. What is the formula for finding the area of a triangle? |
4. How do you find the perimeter of a circle? |
5. Can the area of a shape be greater than its perimeter? |
|
Explore Courses for Class 4 exam
|