27. Thursday: 12/3 ~~ Introduction to Triangles 1-2

27. Thursday: 12/3 ~~ Introduction to Triangles 1-2

Multiple Choice

Find the missing angle. Solve for x if necessary.

• 55 Degrees

• 180 Degrees

• 70 degrees

• 360 Degrees

Multiple Choice

Find the missing angle. Solve for x if necessary.

• 60

• 180 Degrees

• -6

• 360 Degrees

Multiple Choice

Find the missing angle. Solve for x if necessary.

• 180

• -7

• -6

• 360

Multiple Choice

Find the missing angle. Solve for x if necessary.

• 15

• -7

• -6

• 5

Multiple Choice

Given the equilateral triangle. How long is each side of the triangle?

• 3.5 feet

• 15 feet

• 16 feet

• 17 feet

Open Ended

Consider the given triangle,

a. If  $\Delta\ DEF\$  is an isosceles triangles with a base  $\overline{DF}$ , what is the value of x? 

Open Ended

Consider the given triangle,

b. What is the length of each leg?

Open Ended

Consider the given triangle,

c. What is the length of the base?

Open Ended

Consider the given figure, Connect the points on the plane and classify the resulting triangle. 

Open Ended

After connecting the points on the plane, Marcos claims that angle B is a right angle. Is Marcos correct? Explain your reasoning.