4.6 Isosceles & Equilateral Triangles

Refer to the figure at the right. If AB ≅ AE, name two congruent angles.

• ∠ABE and ∠AEB

• ∠BAC and ∠ACD

• ∠CAF and ∠FAH

Refer to the figure. If ∠ABF ≅ ∠AFB, name two congruent segments.

• A) AB and AF

• B) AC and AD

• C) BF and BC

Refer to the figure. If CA ≅ DA, name two congruent angles.

• ∠ACD and ∠ADC

• ∠CAF and ∠FAH

• ∠ABE and ∠AEB

Refer to the figure. If ∠DAE ≅ ∠DEA, name two congruent segments.

• A) AD and DE

• B) AB and AF

• C) BF and BC

Refer to the figure. If ∠BCF ≅ ∠BFC, name two congruent segments.

• A) BF and BC

• B) AB and AF

• C) AD and DE

Refer to the figure at the right. If FA ≅ AH, name two congruent angles.

• A) ∠AFH and ∠AHF

• B) ∠ACD and ∠ADC

• C) ∠ABE and ∠AEB

Find each measure. m∠BAC = ___.

• 60.

• 45.

• 30.

• 90.

Find each measure. m∠SRT = ___.

• 65.

• 70.

• 75.

• 80.

Find each measure. TR = ___.

Mathematical Equivalence

ON

Find each measure. CB = ___.

Mathematical Equivalence

ON