9th Grade > Mathematics
INTRODUCTION TO EUCLID S GEOMETRY MCQs
Total Questions : 57
| Page 3 of 6 pages
Answer: Option A. -> increased by same amount
:
A
Vertically opposite angles are equal. If one angle increases then vertically opposite angle will increase by same amount.
:
A
Vertically opposite angles are equal. If one angle increases then vertically opposite angle will increase by same amount.
:
A surface is obtained by adding, similar lines to each other from one side. Hence, the edges of a surface is also a line.
Answer: Option D. -> 100
:
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.
:
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.
Answer: Option B. -> 180∘
:
B
Any pair of supplementary angles sum up to 180∘
:
B
Any pair of supplementary angles sum up to 180∘
:
Transversal intersects two lines at two distinct points.
Answer: Option B. -> Euclid
:
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.
:
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.
Answer: Option D. ->
105∘, 75∘, 105∘
:
D
:
D
From the figure given in the question, we can observe that
∠3 = 75∘
(Vertically opposite angles)
∠2 +75∘ = 180∘
(Angles on a straight line)
⇒ ∠2 = 180∘- 75∘ = 105∘
∠2 = ∠4
(Vertically opposite angles)
⇒∠4 = 105°
Answer: Option C. ->
Measurement of earth
:
C
Geometry consists of two words: Geo (meaning Earth) and Metry (or Metron meaning measurement). The meaning of geometry is 'measurement of the earth'.
In mathematical terms, geometry is the branch of mathematics where we study about different shapes and their properties. The mathematician who works in the field of geometry is called Geometer.
:
C
Geometry consists of two words: Geo (meaning Earth) and Metry (or Metron meaning measurement). The meaning of geometry is 'measurement of the earth'.
In mathematical terms, geometry is the branch of mathematics where we study about different shapes and their properties. The mathematician who works in the field of geometry is called Geometer.
Answer: Option D. ->
1-b, 2-c, 3-a
:
D
:
D
An angle whose measure is less than 90∘ is called an acute angle.
An angle whose measure is greater than 90∘, but less than 180∘ is called an obtuse angle.
An angle whose measure is 90∘ is called a right angle.
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