Geometry Regents Vocabulary

• 1

• 2

• 3

• 4

In the diagram, ΔLMO is isosceles with LO = MO. If m<L = 55 and m<NOM = 28, what is m<N?

• 27

• 28

• 42

• 70

In the accompanying diagram, AB parallel to CD, m<CAB = 80, and m<DCB = 40. What is m<ACB?

• 40

• 60

• 80

• 120

In the accompanying diagram, ΔABC is a right triangle and CD is the altitude to the hypotenuse AB. If AD = 4 and DB = 16, find the length of CD.

• 4√5

• 8

• 4√15

• 2√5

In the accompanying diagram of ΔABC, L is the midpoint of BC, M is the midpoint of AB, and N is the midpoint of AC. If MN = 8, ML = 5, and NL = 6, find the perimeter of trapezoid BMNC.

• 35

• 31

• 28

• 26

In the accompanying diagram of right triangle ABC, altitude BD divides hypotenuse AC into segments with lengths of 3 and 9. Find the length of AB.

• 3√3

• 6√3

• 6√2

• 6

If ΔABC is similar to ΔADE, which measurements are justified by this similarity?

• AD = 3, AB = 6, AE = 4 and AC = 12

• AD = 5, AB = 8, AE = 7, and AC = 10

• AD = 3, AB = 9, AE = 5, and AC = 10

• AD = 2, AB = 6, AE = 5, and AC = 15

ΔABC is similar to ΔDEF. The ratio of the length of AB to the length of DE is 3:1. Which ratio is also equal to 3:1?

• m<A: m<D

• m<B:m<F

• area ΔABC: area ΔDEF

• perimeter ΔABC:perimeter ΔDEF

The vertex is the point where 2 lines or line segments intersect. 

• True

• False

A point that divides, or bisects, a segment into two congruent segments is called a ___________________.

• midpoint

• congruent segment

• angle bisector

• endpoint