Unit 4 Test

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length.

Front

If ΔPQR is isosceles with PQ ≅ RQ, what can be said about the angles opposite these sides?

Back

The angles opposite the equal sides are also equal.

Front

What is the formula for finding the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180°.

Front

How do you classify a triangle with all sides of different lengths?

Back

A triangle with all sides of different lengths is classified as a scalene triangle.

Front

What is the measure of angle A in a triangle if m∠A = 84°?

Back

Angle A measures 84 degrees.

Front

What is the value of x if it is given that x = 14?

Back

The value of x is 14.

Front

What is the value of x if it is given that x = 13?

Back

The value of x is 13.

Front

What is the definition of a scalene triangle?

Back

A scalene triangle is a triangle in which all sides and all angles are different.

Front

What is the relationship between the sides and angles in a triangle?

Back

In a triangle, the larger the side, the larger the opposite angle.

Front

What is the definition of an equilateral triangle?

Back

An equilateral triangle is a triangle in which all three sides are equal in length and all three angles are equal, each measuring 60°.