Triangle Quiz #1

Find the measure of the interior angle.

(a)  

Complete the Theorem:

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

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

• ...is equal to 90 $\degree$ .

• ...Is equal to 360 $\degree$ .

• ...is equal to 180 $\degree$ .

Find the measure of each angle indicated.

• 50
• 20
• 29
• 48

Which equation could be used to determine the value of the missing angle?

• $82+55=?$

• $82\ +\ 55\ +\ ?\ =180$
  

• $?\ =\ 180$
  

• $82+?\ =\ 55$

All my angles and sides are equal. What triangle am I?

• A Right Triangle

• A Scalene Triangle

• An Isosceles Triangle

• An Equilateral Triangle

Which of these sets of angles is NOT a triangle?

• 43 $\degree$ , 63 $\degree$ , 74 $\degree$

• 53 $\degree$ , 61 $\degree$ , 66 $\degree$

• 28 $\degree$ , 66 $\degree$ , 86 $\degree$

• 33 $\degree$ , 66 $\degree$ , 88 $\degree$

Find the measure of the indicated angle. 

• 95
• 85
• 35
• 45

Find the measure of the interior angle.

(a)  

Classify the following triangle in as many ways as possible. 

• Isosceles, Acute
• Isosceles, Obtuse
• Scalene, Obtuse
• Equilateral, Acute

Which set of side lengths will NOT make a triangle?

• 2, 8, 9

• 3, 5, 7

• 1, 3, 4

• 3, 4, 5