#5.4 Equilateral and Isosceles Triangles

A triangle with at least 2 congruent sides is called...

• Scalene

• Isosceles

• Right

• Obtuse

The two congruent sides of an isosceles triangle are called the...

• base

• legs

• hypotenuse

• equilateral

If $\overline{AB}\cong\overline{AC}$  then...

•  $<B\cong<C$  

•  $<A\cong<C$  

•  $\overline{BC}\cong\overline{AC}$  

•  $\overline{BC}\cong\overline{BA}$  

If $\overline{NJ}\cong\overline{NM}$  , then....

•  $<K\cong<L$  

•  $<J\cong<M$  

•  $\overline{NK}\cong\overline{KL}$  

•  $\overline{JK}\cong\overline{KL}$  

If $\overline{LM}\cong\overline{LN}$  , then....

•  $<LMN\cong<LNM$  

•  $<KLN\cong<MLN$  

•  $\overline{MN}\cong\overline{NJ}$  

•  $\overline{JL}\cong\overline{LM}$  

If $<NKM\cong<NMK$  , then....

•  $\overline{NK}\cong\overline{NL}$  

•  $\overline{JK}\cong<\overline{KN}$  

•  $\overline{NK}\cong\overline{NM}$  

•  $\overline{MK}\cong\overline{MN}$  

Find the value of x

• 25

• 50

• 65

• 130

Find the value of x

• 3

• 6

• 8

• 12

Find the value of x

• 20

• 30

• 45

• 60

Find the value of y

• 4

• 10

• 20

• 100