Sides, Angles

Which of these sets of angles will make a triangle?

• 19 $\degree$ , 28 $\degree$ , 37 $\degree$

• 91 $\degree$ , 82 $\degree$ , 73 $\degree$

• 70 $\degree$ , 65 $\degree$ , 45 $\degree$

Complete the Theorem:

"The sum of the measures of the two smallest sides of a triangle...

• ...will equal the measure of the third side.

• ...cannot be more than the measure of the third side.

• ...must be greater than the measure of the third side.

• ...has nothing to do with the third side.

Complete the Theorem:

"The sum of the angles of any triangle..."

• ...is equal to the measure of the third side.

What is the possible range of measure for the third side of a triangle if the other two sides measure 17 and 25?

• 8 < x < 42

• 0 < x < 25

• 18 < x < 24

• 1 < x < 100

Which of the following would NOT work to make a triangle with the two side lengths of 2 and 6?

• 6

• 7

• 5

• 4

What is the biggest side?

• EF

• FG

• EG

Order the angles from least to greatest.

• A, B, C

• C, B, A

• B, A, C

• B, C, A

Order the sides from least to greatest.

• AB, BC, CA

• BC, AB, CA

• AB, AC, BC

• CA, AB, BC

Order the sides from least to greatest.

• BC, AC, AB

• AB, AC, BC

• AC, AB, BC

• BC, AB, AC

Name the angles from LARGEST to SMALLEST

• R, S, T

• S, T, R

• S, R, T

• T, S, R