Types of Triangles Based on Angles

Q.

Shreya measured the angles of a triangle which came out to be 60°, 50°, and 70°. Find the type of the triangle.

1. Reflex angled triangle

2. Right angled triangle

3. Obtuse angled triangle

4. Acute angled triangle

Q.

State whether the following statement is true or false.

If one angle of a triangle is less than 90 degrees, it is known as an acute-angled triangle.

1. False

2. True

Q.

An obtuse-angled triangle is one in which all the angles are less than 90°. State true or false.

1. True
2. False

Q.

Shreya measured the angles of a triangle which came out to be 60°, 50°, and 70° respectively. Now she wants to know what type of triangle it is.
Can you tell what type of triangle it is?

1. Acute angled triangle

2. Obtuse angled triangle

3. Right angled triangle

4. Reflex angled triangle

Q.

In $△$ABC, ∠ABC = 90${}^{\circ }$, ∠BAC = 45${}^{\circ }$ and ∠ACB = 45${}^{\circ }$. What is this triangle called?

1. Right angled triangle

2. Isosceles triangle

3. 90^o triangle

4. Right angled Isosceles triangle

Q. All three angles of a triangle always add upto .

1. ${180}^{\circ }$
2. ${90}^{\circ }$
3. ${360}^{\circ }$
4. ${270}^{\circ }$

Q. An triangle has one obtuse angle and two acute angles.

1. acute-angled
2. obtused-angled
3. reflex-angled
4. right-angled

Q. A triangle whose sides are 3cm, 3cm and 2cm is a/an triangle.

1. isosceles
2. equivalent
3. scalene
4. equilateral

Q. If all the angles of a triangle are less than 90∘ , then it is called triangle.

1. acute-angled
2. right-angled
3. obtuse-angled

Q. If the angles of a triangle are 60°, 50°, and 70°, then it is triangle

1. Acute angled
2. Obtuse angled
3. Right angled
4. Reflex angled