Exploring Angle and Side Relationships in Triangles

What type of triangle has all sides of equal length?

• Equilateral triangle

• Isosceles triangle

• Scalene triangle

• Right triangle

Tags

CCSS.4.G.A.2

In a triangle, which side is opposite the largest angle?

• None of the above

• The shortest side

• The longest side

• The mid-sized side

Tags

CCSS.HSG.CO.C.10

If a triangle has sides of 7 cm, 9 cm, and 4.5 cm, which side is opposite the smallest angle?

• 9 cm

• 7 cm

• Cannot be determined

• 4.5 cm

Tags

CCSS.HSG.CO.C.10

Which angle in a triangle is opposite the longest side?

• The smallest angle

• The largest angle

• The mid-sized angle

• All angles are equal

Tags

CCSS.HSG.CO.C.10

What is the relationship between side lengths and angle measures in a triangle?

• All sides are opposite equal angles

• Longer sides are opposite larger angles

• Longer sides are opposite smaller angles

• No specific relationship

Tags

CCSS.HSG.CO.C.10

In triangle DEF, if side DE is 8 cm, what is the measure of the angle opposite to it?

• 85 degrees

• 71 degrees

• 59 degrees

• 50 degrees

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

How do you determine the side opposite to a given angle in a triangle?

• None of the above

• Both A and B

• By using the angle measurements

• By comparing the length of the sides

What is the perimeter of an isosceles triangle with sides 7 ft, 7 ft, and 5.9 ft?

• 19.7 ft

• 19.8 ft

• 20 ft

• 19.9 ft

Tags

CCSS.3.MD.D.8

In an isosceles triangle, if two angles measure 65 degrees each, what is the measure of the third angle?

• 65 degrees

• 60 degrees

• 55 degrees

• 50 degrees

Tags

CCSS.8.G.A.5

In a triangle with sides 8 ft, 9 ft, and 12 ft, what is the measure of the angle opposite the 9 ft side?

• 50 degrees

• Cannot be determined

• 85 degrees

• 45 degrees

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11