Triangle Review

Triangle Congruency

100

The five ways to prove triangles congruent

SSS, SAS, ASA, AAS, HL

200

Property that lets me use a shared side or angle.

Reflexive property

300

The difference between AAS and ASA

The side is included between the angles with ASA

400

All the conditions for using HL

Must be right triangle, have matching legs and matching hypotenuses

500

How to prove triangles ABD and CBD are congruent if BD is a perpendicular bisector of AC.

SAS

Angles in Polygons

100

The sum of the angles in a quadrilateral

360

200

The sum of the exterior angles of a pentagon

360

300

The sum of the angles in a hexagon

720

400

The angle measure of one angle in a regular octagon

135

500

The measure of the missing angle in a pentagon when the known angles are 85, 96, 129, and 120

110

Angles in Triangles

100

The sum of the angles in a triangle

180 degrees

200

The measure of a remote interior angle when the exterior angle is 130 and one of the remote interior angles is 50

80 degrees

300

The value of x when the angles of a triangle are (3x-2), (5x-7), and x

21

400

The value of x when the remote interior angles are (4x + 1) and (11x - 3) and the exterior angle is (13x + 42)

22

500

The measure of a remote interior angle at A if ABC is a right triangle with <C as the right angle and the measure of <ABD is 110

20 degrees

Sides and Angles

100

The smallest angle when the sides of a triangle are AB = 10, BC = 12, and AC = 8

< B

200

The longest side when the angles are: <A = 37, <B = 64, and <C = 79

Side AB

300

Possible side lengths for a third side of a triangle when the known sides measure 5 and 14

9 < x < 19

400

Can the following be side lengths of a triangle: 11, 18, 29

No

500

Shortest side of triangle ABC when <A = 47, <B = 89

side AB

Isosceles and Equilateral

100

The measure of a base angle when the vertex angle is 20 degrees

80 degrees

200

The measure of the vertex angle of an isosceles triangle when a base angle is 40 degrees

100 degrees

300

The measure of an exterior angle of an equilateral triangle.

120 degrees

400

The measure of an angle exterior to a base angle of an isosceles triangle when the vertex angle is 40 degrees

110 degrees

500

The base of an isosceles triangle when the angles are <A = 35, <B = 110, <C = 35

Name the side

AC