Solving for Sides and Angles in Triangles

These triangles are congruent. If ∠E is 45^o and ∠B is 55^o what is the measure of ∠C?

• 45^o

• 55^o

• 80^o

• 100^o

State whether the two figures are congruent.

• Yes, same size and same shape

• No, same shape but different sizes

• No, different size and different shapes

Find m<A. 

• 12

• 24

• 132

• 36

• equilateral
• isosceles
• scalene

• acute
• obtuse
• right
• equiangular

• obtuse scalene
• right isosceles
• scalene acute
• acute isosceles

Find x

• 9

• 2

• 6

• 4

What is a possible third side to a triangle with side lengths of 13 and 4?

• 9

• 12

• 8

• 5

Find the measure of the missing angle.

• 90^o

• 10⁰

• 130^o

• 50^o

Solve for x.

• 16

• 11

• 50

• 6