Construction of Equilateral Triangles

What should be the next step to construct an equilateral triangle? (Be careful!)

• Construct segments AC and BC.

• Draw a circle centered at C with the radius AB.

• Draw segment AD and AC.

Classify the triangle in the construction.

• scalene triangle

• equilateral triangle

• isosceles triangle

• right triangle

What is the measure of BC?

• 12

• 6

• not enough information

• 10

A "Yield" sign is an equiangular triangle. What are the lengths of the sides?

Mathematical Equivalence

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What is the length of side JK?

• 12

• 30

• 33

• 3

• 9
• 11
• 8
• 6

What is the value of y?

• 7

• 4

• 6

• 14

What do the angles in an equilateral triangle measure?

• 30, 60, 90

• 60, 60, 60

• 45, 45, 90

• 35, 55, 90

Find x

• 3

• 4

• 2

• 10

What is the length of DF?

• 8

• 4

• 25

• 71