Relationships in Triangles

• 21

• 35

• 36

• 48

• 70

Find MN.

• 7

• 9.3

• 12.7

• 19

• 38

If segment EF is the perpendicular bisector of segment CD, find x.

• 2

• 6

• 4.75

• 13

• 71

1. Segment QS bisects angle PSR. Find QR.

• 4.1

• 7.3

• 9

• 32

• 49

6. The lengths of two sides of a triangle are 26 meters and 48 meters. Check all possible values for the third side.

• 18

• 22

• 48

• 56

• 64

• DE, EF, DF

• EF, DF, DE

• EF, DE, DF

• DF, DE, EF

• P, R, Q

• R, Q, P

• P, Q, R

• Q, R, P

What is the relationship between the exterior angle of a triangle and its remote interior angles?

• The exterior angle is equal to the difference of the two remote interior angles.

• The exterior angle is equal to one of the remote interior angles.

• The exterior angle is unrelated to the remote interior angles.

• The exterior angle is equal to the sum of the two remote interior angles.

In a school, Ethan, Elijah, and Lily are working on a project involving a right-angled triangle. What is the relationship between the two non-right angles?

• Opposite

• Supplementary

• Complementary

• Adjacent