The three steps from solids to points are :
a. Solids - surfaces - lines - points
b. Solids - lines - surfaces - points
c. Lines - points - surfaces - solids
d. Lines - surfaces - points - solids
Solution:
We know that
A solid has size, shape and position.
The boundaries are called surfaces
The boundaries of the surfaces are straight lines or curves.
The points are the ends of these lines
Therefore, the three steps are solids - surfaces - lines - points.
✦ Try This: Solve the equation d - 2 = 4 and state which axiom do you use here.
Given, the equation is d - 2 = 4
We have to solve the equation and state which axiom is used here.
Using Euclid’s second axiom,
If equals are added to the equals, the wholes are equal.
On adding 2 on both the sides of the equation,
d - 2 + 2 = 4 + 2
d = 4 + 2
d = 6
Therefore, the solution of the equation is d = 6.
☛ Also Check: NCERT Solutions for Class 9 Maths Chapter 5
NCERT Exemplar Class 9 Maths Exercise 5.1 Problem 1
The three steps from solids to points are : a. Solids - surfaces - lines - points, b. Solids - lines - surfaces - points, c. Lines - points - surfaces - solids, d. Lines - surfaces - points - solids
Summary:
Solid shapes are three-dimensional shapes that have length, breadth, and height as the three dimensions. The three steps from solids to points are solids - surfaces - lines - points
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