Postulate1
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Q. Write all the 5 Euclid's postulates with diagram
Q.
Euclid's Postulate 1 is :
A straight line may be drawn from any point to any other point.
A terminated line can be produced indefinitely.
All right angles are equal to one another.
None of these
Q. Assumptions that are specific to geometry are called ____
- postulates
- axioms
- theorems
- theory
Q.
In the figure, AC > AB and D is a point on AC such that AB = AD, then
BC = AD
BC < AD
BC = 1/2AD
BC > CD
Q.
In figure, C is mid-point of the segment AB, P and Q are mid-point of the segments AC and BC respectively. Prove that AP = BQ = AB/4
Q. Ram’s salary is equal to Mohan’s salary. Due to recession, the salaries of Ram and Mohan are made half. The final salary of Ram will be:
- More than Mohan
- Equal to Mohan
- Same as before
- Less than Mohan
Q. A unique line can be drawn with a minimum of two points. Which of the following postulates state this?
- There is a unique line that passes through the given two distinct points
- A line segment can be extended on either side to form a straight line
- We can describe a circle with any center and radius
- All right angles are equal
Q. In this question
In a triangle ABC , AB>AC , AD is perpendicular to BC , prove that
AB 2 - AC2 = BD 2= CD2
I have done it like this
In triangle ABD
AD2. = AB2 -. BD2. EQUATION 1
In triangle ADC
AD2 =. AC2 - CD2. EQUATION 2
on combining. EQUATION 1 and 2
AD2 = AB2. -. BD 2
AD2 = AC2 - CD2.
AB2 -. AC2 =. BD2 - CD2
hence proved
IS THIS CORRECT
In a triangle ABC , AB>AC , AD is perpendicular to BC , prove that
AB 2 - AC2 = BD 2= CD2
I have done it like this
In triangle ABD
AD2. = AB2 -. BD2. EQUATION 1
In triangle ADC
AD2 =. AC2 - CD2. EQUATION 2
on combining. EQUATION 1 and 2
AD2 = AB2. -. BD 2
AD2 = AC2 - CD2.
AB2 -. AC2 =. BD2 - CD2
hence proved
IS THIS CORRECT
Q.
. If are the sides of a non-equilateral triangle, then the expression is:
Negative
Non-negative
Positive
Non-positive
Q. A terminated line can be produced indefinitely on both the sides.
- False
- True
Q.
In the above question, point C is called a mid-point of line segment AB, prove that every line segment has one and only one mid-point.