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

Solve each problem and decide which is the best of the choices given.

If , what is ?

Solve each problem and decide which is the best of the choices given.

If , what is ?

A triangle has the following side lengths:

Which of the following correctly describes the triangle?

Solve each problem and decide which is the best of the choices given.

If , what is ?

In the figure above, is a square and is three times the length of . What is the area of ?

Two sides of a given triangle are both . If one angle of the triangle is a right angle, then what is the measure of the hypotenuse?

What is the area of a square that has a diagonal whose endpoints in the coordinate plane are located at (-8, 6) and (2, -4)?

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

What is the perimeter of the triangle above?