Understanding Elementary Shapes Test

Result

Understanding Elementary Shapes Test - 18

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Which angle of a triangle is a right angle?

A
Angle C

B
Angle A

C
Angle B

D
None of the above

Solution

From the geometry of the figure it is clear that $$\angle B$$ is right angle.
So option $$C$$ is correct.
Question 2
1 / -0

If one angle at a point is reflex angle, the other at that point may be :

A
Acute angle

B
Obtuse angle

C
Straight angle

D
Acute or obtuse angle

Solution

We know, the angle formed at a point is $$\displaystyle { 360 }^{ o }$$.
When one of angle is reflex, it range from $$\displaystyle { 180 }^{ o }$$ to $$\displaystyle { 360 }^{ o }$$.
If angle is $$\displaystyle { 200 }^{ o }$$ then the other angle is $$\displaystyle { 160 }^{ o }$$, i.e obtuse angle.
If one reflex angle is $$\displaystyle { 300 }^{ o }$$ then other angle is $$\displaystyle { 60 }^{ o }$$ i.e acute angle.
Hence, the option $$D$$ is correct.
Question 3
1 / -0

Which of the following is a reflex angle?

A
$$\displaystyle { 180 }^{ o }$$

B
$$\displaystyle { 360 }^{ o }$$

C
$$\displaystyle { 204 }^{ o }$$

D
$$\displaystyle { 135 }^{ o }$$

Solution

We know, reflex angle must be between $$\displaystyle { 180 }^{ o }$$ and $$\displaystyle { 360 }^{ o }$$. It can't be equal to $$\displaystyle { 180 }^{ o }$$ or $$\displaystyle { 360 }^{ o }$$ as these are straight and complete angle, respectively.

Here, only $$204^o$$ is greater than $$180^o$$ and less than $$360^o$$.
Therefore, option $$C$$ is correct.
Question 4
1 / -0

How many pairs of congruent parallel faces does a rectangular prism have?

A
6

B
3

C
5

D
4

Solution

A rectangular prism has 3 pairs of congruent parallel faces.
Question 5
1 / -0

How many congruent faces does a cube have?

A
$$6$$

B
$$3$$

C
$$5$$

D
$$4$$

Solution

A cube has $$6$$ faces. An example of cube is a a dice where every face is numbered from one to six.
Thus a cube has $$6$$ congruent faces.
Question 6
1 / -0

Reflex angle is greater than _____ but less than _____angle.

A
Complete, acute

B
Acute, Straight

C
Obtuse, Straight

D
Straight, Complete

Solution

Reflex angle is the angle which is greater than $$\displaystyle {180}^{ o }$$ and less than $$\displaystyle {360 }^{ o }$$.
Straight angle is $$\displaystyle { 180 }^{ o }$$ and complete angle is $$\displaystyle { 360 }^{ o }$$.

So reflex angle is greater than straight angle and less than complete angle.
Question 7
1 / -0

Identify the 3D figure.

A
Cylinder

B
Cone

C
Circle

D
Cuboid

Solution

The given 3D figure is cylinder.
Question 8
1 / -0

Find the name of the triangle.

A
isosceles

B
equilateral

C
scalene

D
acute

Solution

The name of the triangle is scalene triangle, because all the sides are different.
Question 9
1 / -0

Identify the name of the triangle.

A
isosceles

B
equilateral

C
scalene

D
right-angled

Solution

The diagram shows a scalene triangle.
A scalene triangle has no equal angles.
Question 10
1 / -0

A ______ triangle has no congruent sides.

A
isosceles

B
equilateral

C
acute

D
scalene

Solution

A scalene triangle has no congruent sides, all sides are different.