9th Grade > Mathematics
INTRODUCTION TO EUCLID S GEOMETRY MCQs
:
D
According to the axiom - 'if equals are added to equals, the wholes are equal.' Rahul has 105 chocolates after adding 5 chocolates to the box of 100 chocolates. It is given that Ramu also added 5 chocolates to get 105 chocolates at the end. Hence it can be deduced that Ramu also had 100 chocolates before adding 5 chocolates to his box.
:
B
Euclid was a Greek mathematician and is called 'father of Geometry'. He compiled elements which have several geometric theories. These are still used by mathematicians all around the world.
:
A
As ∠ XAB = ∠ DBA, which form the alternate interior angle pair for lines WX and YZ and transversal PQ, we can say that lines XW and YZ are parallel.
:
B
Any pair of supplementary angles sum up to 180∘
:
A
The general statements which are accepted without question and which are applicable to all branches of Mathematics are commonly referred to as Axioms.The statements which are particular to Geometry and accepted without question are called Postulates. Any result proved depends on these axioms and postulates.
:
A surface is obtained by adding, similar lines to each other from one side. Hence, the edges of a surface is also a line.