Unit 5 Flashcard

Front

What is the measure of angle WXY?

Back

m∠WXY = 142°

Front

Which statement is needed to prove triangles GHJ and LJK are congruent using ASA?

Back

∠HGJ ≅ ∠KLJ

Front

What is the measure of angle B?

Back

m∠B = 73°

Front

What is the correct statement about triangle PQR with vertices P(1, 1), Q(-2, 4), and R(1, 7)?

Back

The slope of \overline{PQ} is -1, which is the reciprocal of the slope of \overline{QR}, and PQ and QR are equal to 3\sqrt{2}.

Front

What is the measure of angle C?

Back

m∠C = 48°

Front

Define congruent triangles.

Back

Triangles are congruent if they have the same size and shape, meaning their corresponding sides and angles are equal.

Front

What does ASA stand for in triangle congruence?

Back

ASA stands for Angle-Side-Angle, a criterion for triangle congruence.

Front

What is the formula for finding the slope between two points (x1, y1) and (x2, y2)?

Back

The slope m = (y2 - y1) / (x2 - x1).

Front

What is an isosceles triangle?

Back

An isosceles triangle has at least two sides that are equal in length.

Front

What is the relationship between the slopes of perpendicular lines?

Back

The slopes of perpendicular lines are negative reciprocals of each other.