Advertisements
Advertisements
प्रश्न
Solve the following question using appropriate Euclid’s axiom:
In the following figure, we have X and Y are the mid-points of AC and BC and AX = CY. Show that AC = BC.

Advertisements
उत्तर
Given, X is the mid-point of AC
AX = CX = `1/2` AC
⇒ 2AX = 2CX = AC ...(i)
And Y is the mid-point of BC.
BY = CY = `1/2` BC
⇒ 2BY = 2CY = BC ...(ii)
Also, given AX = CY ...(iii)
According to Euclid’s axiom, things which are double of the same things are equal to one another.
From equation (iii), 2AX = 2CY
⇒ AC = BC ...[From equation (i) and (ii)]
APPEARS IN
संबंधित प्रश्न
Give a definition of the following term. Are there other terms that need to be defined first? What are they, and how might you define them?
parallel lines
Given three distinct points in a plane, how many lines can be drawn by joining them?
The number of dimensions, a solid has ______.
In Indus Valley Civilisation (about 3000 B.C.), the bricks used for construction work were having dimensions in the ratio ______.
Which of the following needs a proof?
Solve the following question using appropriate Euclid’s axiom:
In the following figure, we have ∠ABC = ∠ACB, ∠3 = ∠4. Show that ∠1 = ∠2.

In the following figure BM = BN, M is the mid-point of AB and N is the mid-point of BC. Show that AB = BC.

Read the following statement :
An equilateral triangle is a polygon made up of three line segments out of which two line segments are equal to the third one and all its angles are 60° each.
Define the terms used in this definition which you feel necessary. Are there any undefined terms in this? Can you justify that all sides and all angles are equal in a equilateral triangle.
Read the following axioms:
- Things which are equal to the same thing are equal to one another.
- If equals are added to equals, the wholes are equal.
- Things which are double of the same thing are equal to one another.
Check whether the given system of axioms is consistent or inconsistent.
The following statement is true or false? Give reason for your answer.
There are an infinite number of lines which pass through two distinct points.
