The number of dimensions, a solid has :
a. 1
b. 2
c. 3
d. 0
Solution:
I step - Let us describe the dimensions in a solid
The measurement in a particular direction is the dimension.
A solid has length, breadth and height.
II step - Determine the number of dimensions in the solid
Number of dimensions in a solid is 3
Therefore, a solid has 3 number of dimensions
✦ Try This: Two salesmen make equal sales during the month of March. In April, each salesman doubles his sales for the month of March. Compare their sales in April. Solve using Euclid’s axiom
Given, two salesmen make equal sales during the month of March.
In April, each salesman doubles his sales for the month of March.
We have to compare their sales in April.
Let the sale of one salesman in March be x.
Given, sales are equal.
So, sale of other salesman in March = x
In April, sale of first salesman = 2x
Sale of second salesman = 2x
Using Euclid’s axiom,
Things which are double of the same thing are equal to one another
Therefore, in April the sales are equal.
☛ Also Check: NCERT Solutions for Class 9 Maths Chapter 5
NCERT Exemplar Class 9 Maths Exercise 5.1 Problem 2
The number of dimensions, a solid has : a. 1, b. 2, c. 3, d. 0
Summary:
Solid shapes are three-dimensional shapes that have length, breadth, and height as the three dimensions. The number of dimensions a solid has is 3
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