A rectangular piece of dimensions 3 cm × 2 cm was cut from a rectangular sheet of paper of dimensions 6 cm × 5 cm (Fig. 9.14). Area of remaining sheet of paper is
a. 30 cm²
b. 36 cm²
c. 24 cm²
d. 22 cm²
Solution:
It is given that
Length of rectangle = 6 cm
Breadth of rectangle = 5 cm
We know that
Area of bigger rectangle = length × breadth
Substituting the values
= 6 × 5
= 30 cm²
Similarly
Dimensions of smaller rectangle are 3 cm and 2 cm
Area of smaller rectangle = 3 × 2
= 6 cm²
Here
Area of remaining sheet of paper = Area of bigger rectangle - Area of smaller rectangle
Substituting the values
= 30 - 6
= 24 cm²
Therefore, the area of the remaining sheet of paper is 24 cm².
✦ Try This: A rectangular piece of dimensions 5 cm × 3 cm was cut from a rectangular sheet of paper of dimensions 9 cm × 7 cm (Fig. 9.14). Area of remaining sheet of paper is
☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 11
NCERT Exemplar Class 7 Maths Chapter 9 Problem 2
A rectangular piece of dimensions 3 cm × 2 cm was cut from a rectangular sheet of paper of dimensions 6 cm × 5 cm (Fig. 9.14). Area of remaining sheet of paper isa. 30 cm², b. 36 cm², c. 24 cm², d. 22 cm²
Summary:
A rectangular piece of dimensions 3 cm × 2 cm was cut from a rectangular sheet of paper of dimensions 6 cm × 5 cm (Fig. 9.14). Area of the remaining sheet of paper is 24 cm²
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