Understanding Elementary Shapes Test

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Understanding Elementary Shapes Test - 10

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Weekly Quiz Competition

Question 1
1 / -0

The triangle formed by $$BC = 5 \ cm, AC = 3 \ cm, AB = 5.8 \ cm$$ is:

A
a right angled $$\Delta $$

B
an isosceles $$\Delta $$

C
an equilateral $$\Delta $$

D
a scalene $$\Delta $$

Solution

Given three lengths of sides are different.
Also, the sides do not follow Pythagora's theorem.
So, it is a scalene triangle.
Option $$D$$ is correct.
Question 2
1 / -0

An angle which measures $$180^{\circ}$$ is called_______angle.

A
zero

B
right

C
straight

D
acute

Solution

An angle which measures $$ {180}^{o} $$ is called a straight angle.
Question 3
1 / -0

A triangle with one right angle and two acute angles is called

A
right angled triangle

B
acute angled triangle

C
equilateral triangle

D
none of these

Solution

A triangle with a right angle and two acute angles is called right angled triangle.
Question 4
1 / -0

A triangle can have :

A
one right angle

B
two right angles

C
three obtuse angles

D
none of these

Solution

Right angled triangle is a type of a triangle where one angle is right angle.
By angle sum property, sum of angles of a triangle $$= 180^{o}$$
If two angles are right angles in a triangle, then according to angle sum property, third angle $$= 0^{o}$$
This is not possible for a triangle.
So, other two angles have to be acute angle.
$$A$$ is the answer.
Question 5
1 / -0

A triangle with the sides measuring $$5$$ cm, $$6$$ cm and $$4$$ cm is called:

A
an equilateral triangle

B
an isosceles triangle

C
a scalene triangle

D
none of the above

Solution

A triangle with three unequal sides is called scalene triangle.
So, option C is correct.
Question 6
1 / -0

The interior and boundary of a triangle is called

A
exterior

B
interior

C
triangular region

D
plane

Solution

Triangular region is the region inside the triangle i.e, inside the boundary of the triangle including boundary. Considering this definition we will get option $$C$$ as correct answer.
Question 7
1 / -0

Measure of an obtuse angle is:

A
$$> 0^{\circ}, < 90^{\circ}$$

B
$$> 90^{\circ}, < 180^{\circ}$$

C
$$> 0^{\circ}, < 270^{\circ}$$

D
$$> 0^{\circ}, < 180^{\circ}$$

Solution

Measure of an obtuse angle is always greater than $$0^o$$ and less than $$180^o$$.
Therefore, it can be written as
Obtuse angle is $$>$$ $$90^{\circ}$$ & $$<$$ $$180^{\circ}$$
Question 8
1 / -0

Complete the following statement.
Number of measurements required to construct a square are__________.

A
1

B
2

C
3

D
4

Solution

If we know the length of the side of the square, we can construct it since a square has all four sides equal and each of the four angles is equal to $$ {90}^{o} $$

Hence, number of measurements required to construct a square is $$ 1 $$
Question 9
1 / -0

Which of the following are equiangular and equilateral polygons?

A
Square

B
Rhombus

C
Kite

D
None of these

Solution

Squares are equiangular and equilateral polygons as it has all the sides and angles equal.
Question 10
1 / -0

Which is/are three dimensional shapes?

A
Sphere

B
Cylinder

C
Cone

D
All of the above

Solution

Height, width and depth are the three dimensions of an object or a shape.
An object that has height, width and depth, like any object in the real world are known as three dimensional or 3D shapes.
3D shapes are difficult to be drawn on a flat piece of paper.
Sphere, Cylinder and Cone have all the three dimensions and hence are three dimensional shapes.

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Re-Attempt Weekly Quiz Competition

Understanding Elementary Shapes Test - 10

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Understanding Elementary Shapes Test - 10

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SHARING IS CARING

Question 1

a right angled $$\Delta $$

an isosceles $$\Delta $$

an equilateral $$\Delta $$

a scalene $$\Delta $$

Solution

Question 2

zero

right

straight

acute

Solution

Question 3

right angled triangle

acute angled triangle

equilateral triangle

none of these

Solution

Question 4

one right angle

two right angles

three obtuse angles

none of these

Solution

Question 5

an equilateral triangle

an isosceles triangle

a scalene triangle

none of the above

Solution

Question 6

exterior

interior

triangular region

plane

Solution

Question 7

$$> 0^{\circ}, < 90^{\circ}$$

$$> 90^{\circ}, < 180^{\circ}$$

$$> 0^{\circ}, < 270^{\circ}$$

$$> 0^{\circ}, < 180^{\circ}$$

Solution

Question 8

1

2

3

4

Solution

Question 9

Square

Rhombus

Kite

None of these

Solution

Question 10

Sphere

Cylinder

Cone

All of the above

Solution

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