Unit 3 Triangles Cumulative Practice 25-26

Classify each triangle in the diagram below by its angles. ΔCDE: __________________________

• Acute

• Right

• Obtuse

• Classify triangle ΔCDE by its angles.

Tags

CCSS.4.G.A.2

Classify each triangle in the diagram below by its angles. ΔBCE: __________________________

• Acute triangle

• Right triangle

• Obtuse triangle

• Equilateral triangle

Tags

CCSS.4.G.A.2

Classify each triangle in the diagram below by its angles. ΔBDE: __________________________

• ΔBDE: Acute

• ΔBDE: Right

• ΔBDE: Obtuse

• ΔBDE: Equilateral

Tags

CCSS.4.G.A.2

Classify each triangle in the diagram below by its sides. ΔJKN: __________________________

• Equilateral

• Obtuse.

• Scalene

• Isosceles

Tags

CCSS.4.G.A.2

A triangle with three congruent sides is called

• Equilateral

• Scalene

• Isosceles

• Obtuse

Tags

CCSS.4.G.A.2

A triangle with one angle measuring 114° is called

• right

• obtuse

• acute

• scalene

Tags

CCSS.4.G.A.2

Classify the triangle with sides 15 in, 18 in, and 20 in by its angles and sides.

• Scalene

• Isosceles

• Acute

• Right

• Equilateral

Tags

CCSS.4.G.A.2

If ⊿JKL is an equilateral triangle, JK = 13x + 5, KL = 17x – 19, and JL = 8x + 35, find the value

of x and the measure of each side.

• x = 6, each side = 25 units

• x = 6, each side = 83 units

• x = 12, each side = 78 units

• x = 5, each side = 17 units

Tags

CCSS.HSG.CO.C.10

Why is the triangle classified as isosceles?

• All angles are acute

• At least two sides are congruent

• At least one angle is acute

• All angles are congruent

Tags

CCSS.2.G.A.1

Why is the triangle classified as isosceles?

• All angles are acute

• At least two sides are congruent

• At least one angle is acute

• All angles are congruent

Tags

CCSS.2.G.A.1