Geometry Ch 4

Question 1

SSS

Answer 1

if all three sides of a triangle are congruent to three sides of another triangle, then the triangles are congruent

Question 2

SAS

Answer 2

if two sides of a triangle and the angle between them are congruent to the corresponding two sides and angle of another triangle, then the triangles are congruent

Question 3

ASA

Answer 3

if two angles of a triangle and the side between them are congruent to the corresponding two angles and a side of another triangle, then the triangles are congruent

Question 4

Isosceles Triangle

Answer 4

If two sides of a triangle are equal, then the angles opposite them are equal

Question 5

Equilateral Triangles

Answer 5

equilateral triangles have all three angles equal and all three sides equal

Question 6

Right Triangle

Answer 6

Right Triangles have one 90° angle, and two acute angles

Question 7

Acute Triangle

Answer 7

Acute Triangle- must have 3 acute angles

Question 8

Obtuse Triangle

Answer 8

Obtuse Triangle- must have 1 obtuse angle

Question 9

pythagorean theorem:

Answer 9

a² + b² = c²

Question 10

Linear Pair

Answer 10

Linear Pair- two angles that share a side and add to 180° *if two angles of a linear pair are equal, then they are each 90°

Question 11

Vertical Angles

Answer 11

When two lines intersect, they create vertical angles opposite to each other which are equal

Question 12

All the angles of a triangle add up to

Answer 12

180°

Question 13

Distance Formula- between two points on a graph

Answer 13