Geometry Semester 1 Review Competition (MC)

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length. The angles opposite these sides are also equal.

Tags

CCSS.4.G.A.2

Front

How do you find the measure of an angle in an isosceles triangle?

Back

In an isosceles triangle, the measures of the two equal angles can be found using the formula: 2x + base angle = 180°, where x is the measure of the equal angles.

Tags

CCSS.8.G.A.5

Front

What does it mean when two triangles are congruent?

Back

Two triangles are congruent if they have the same size and shape, meaning all corresponding sides and angles are equal.

Tags

CCSS.8.G.A.2

Front

How do you solve for a variable in a triangle congruence problem?

Back

Tags

CCSS.HSG.CO.B.7

Front

What is the sum of the interior angles of a triangle?

Back

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

Tags

CCSS.8.G.A.5

Front

What is the definition of an angle?

Back

An angle is formed by two rays (sides) that share a common endpoint (vertex). The measure of an angle is typically expressed in degrees.

Tags

CCSS.4.G.A.1

Front

What is the difference between acute, obtuse, and right angles?

Back

An acute angle measures less than 90°, a right angle measures exactly 90°, and an obtuse angle measures more than 90° but less than 180°.

Tags

CCSS.4.G.A.1

Front

What is the relationship between the angles in a triangle?

Back

In any triangle, the sum of the measures of the three interior angles is always 180°.

Tags

CCSS.8.G.A.5

Front

How can you determine if an angle measure cannot be determined?

Back

If there is insufficient information provided about the triangle or angles, such as missing side lengths or angle measures, then the angle measure cannot be determined.

Tags

CCSS.8.G.A.2

Front

What is the formula for finding the measure of an exterior angle of a triangle?

Back

The measure of an exterior angle of a triangle is equal to the sum of the measures of the two opposite interior angles.

Tags

CCSS.8.G.A.5