Finding the Unknown Angle of a Triangle

Q. One angle of a triangle is ${40}^{\circ }$ and the other two angles have equal measures. Measure of each equal angle will be degree.

Q. Find the missing angle(in degree) in the triangle ABC.

1. 52

Q. In the triangle ABC, find the measure of ∠C.

1. ${45}^o$
2. ${35}^o$
3. ${55}^o$
4. ${65}^o$

Q. Find out the value of ∠BAC.

1. ${60}^o$
2. ${120}^o$
3. ${90}^o$
4. None of the above

Q. Select the correct set of angles that can form a triangle.

1. ${44}^o$, ${44}^o$, and ${112}^o$
2. ${65}^o$, ${85}^o$, and ${45}^o$
3. ${45}^o$, ${45}^o$, and ${90}^o$
4. None of the above

Q. Find the missing angle, and name the type of the triangle.

1. 60°; Equilateral triangle
2. 60°; Isosceles triangle
3. 60°; Scalene triangle
4. None of the above

Q. Find the missing angle of the triangle:
${110}^{\circ },{55}^{\circ }$,

1. ${15}^{\circ }$
2. ${25}^{\circ }$
3. ${20}^{\circ }$