Understanding Elementary Shapes Test

Result

Understanding Elementary Shapes Test - 20

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Question 1
1 / -0

A ______ triangle is a triangle with one angle that is exactly $$90^{o}.$$

A
right angled

B
acute

C
obtuse

D
scalene

Solution

A right angled triangle is a triangle with one angle that is exactly $$90^{o}.$$
Question 2
1 / -0

A triangle that has an angle greater than $$90^{o}$$ is called as ______ triangle.

A
acute

B
right angled

C
equilateral

D
obtuse

Solution

A triangle that has an angle greater than $$90^{o}$$ is called as obtuse triangle.
Question 3
1 / -0

Find the name of the triangle.

A
acute

B
obtuse

C
scalene

D
isosceles

Solution

A triangle that has an angle greater than $$90^{o}$$ is called as obtuse triangle.
So, the name of the triangle is obtuse triangle.
Question 4
1 / -0

Identify the obtuse triangle.

A

B

C

D

Solution

A triangle that has an angle greater than $$90^{o}$$ is called as obtuse triangle.
Question 5
1 / -0

An obtuse triangle will have one and only one _______ angle.

A
acute

B
obtuse

C
scalene

D
right angled

Solution

An obtuse triangle will have one and only one obtuse angle, because the sum of angles of a triangle is $$180^{o}$$.
If there are two obtuse angles or an obtuse and a right angle the sum will exceed $$180^{o}$$.
Question 6
1 / -0

A right triangle is a triangle with one angle that is exactly ____ degrees.

A
$$30^o$$

B
$$45^o$$

C
$$90^o$$

D
$$180^o$$

Solution

A right triangle is a triangle with one angle that is exactly $$90^o$$.
Question 7
1 / -0

Which one of the following figure is an obtuse triangle?

A

B

C

D

Solution

A triangle that has an angle greater than $$90^{o}$$ is called as obtuse triangle.
Question 8
1 / -0

Identify the triangle.

A
obtuse

B
acute

C
isosceles

D
right angled

Solution

Acute triangle is that which has all angles less than $$90^o$$.
So, the name of the figured triangle is an acute angled triangle.
Question 9
1 / -0

Which one of the following triangle is not an obtuse triangle?

A

B

C

D

Solution

A triangle that has an angle greater than $$90^{o}$$ is called as obtuse angled triangle.
Here, the third option has one angle equal to $$90^{o}$$ which is right angled triangle is not an obtuse triangle.
Question 10
1 / -0

Which one of the following is not an acute scalene triangle?

A

B

C

D

Solution

Acute scalene triangle has three different angles. The last option is not an acute scalene triangle, because the three angles are equal.