Find the value of x.

Find the sum of the interior angle measures of a regular polygon with 17 sides.

A polygon has 5 sides. The interior angle measures are 115°, 131°, 118°, 130°, and x°. Find the value of x.

In the figure shown, lines k and l are parallel.

Amy claims that m∠4 + m∠5 = m∠10 + m∠9.

Is Amy correct? Use appropriate mathematical language to justify your response. Enter your answer and your justification in the space provided.

Find the value of x.

A streetlight that is 7.5 feet tall casts a 3-foot-long shadow. A nearby flagpole casts a 16.5-foot-long shadow. What is the height of the flagpole?

Find the value of x.

Find the value of x.

Line JM is parallel to line KL. The measure of angle KLM is 65°. Kevin states that he can determine the measures of all four interior angles from only the information given.

Kevin's statement is incorrect.

• Explain which interior angle measure Kevin can determine from the given information.

• What additional information about line JK and line ML must Kevin have in order to compute the measures of all four interior angles of figure JKLM?

• Explain why this additional information is needed.

Determine whether the triangles are similar.

Describe the relationship between ∠2​ and ∠7​ .

Describe the relationship between ∠1​ and ∠2​ .

Describe the relationship between ∠1​ and ∠5​ .

Identify one pair of vertical angles.

Identify one pair of alternate interior angles.