Acute / Obtuse Triangles

Practice Questions

High School Math › Acute / Obtuse Triangles

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The base angle of an isosceles triangle is 15 less than three times the vertex angle. What is the vertex angle?

Exterior_angle

If the measure of $\angle A=52^{\circ}$ and the measure of $\angle B= 43^{\circ}$ then what is the meausre of $\angle\theta$ ?

Exterior_angle

If the measure of $\angle A=52^{\circ}$ and the measure of $\angle B= 43^{\circ}$ then what is the meausre of $\angle\theta$ ?

The base angle of an isosceles triangle is 15 less than three times the vertex angle. What is the vertex angle?

Exterior_angle

If the measure of $\angle A=56^{\circ}$ and the measure of $\angle B=47^{\circ}$ then what is the meausre of $\angle\theta$ ?

Exterior_angle

If the measure of $\angle A=56^{\circ}$ and the measure of $\angle B=47^{\circ}$ then what is the meausre of $\angle\theta$ ?

Which of the following can NOT be the angles of a triangle?

In a given triangle, the angles are in a ratio of 1:3:5. What size is the middle angle?

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