# Lesson Worksheet: Proving Angle Relationships Mathematics

In this worksheet, we will practice writing proofs involving complementary, supplementary, conjugate, and right angles.

Q1:

Which of the following angles forms a straight line when combined with this angle? • A • B • C • D • E Q2:

What is the measure of the missing angle? Q3:

What is the measure of the missing angle? Q4:

In the given figure, Osama stated that is an obtuse angle measuring , and Bandar stated that is an acute angle measuring . Determine which of the two is correct without using a protractor. • AOsama
• BBandar

Q5:

Hassan and Faisal are trying to find the missing angle that would make a straight line when combined with the given angle. Hassan says that the angle will be and Faisal says that the angle will be . Who is right? • AFaisal
• BHassan

Q6:

Which of the following angles forms a straight line when combined with this angle? • A • B • C • D • E Q7:

What is the measure of the missing angle? Q8:

Are and on the same straight line? • ANo
• BYes

Q9:

While hiking, a group of boy scouts came across a level ground suitable for setting up their tent as shown. If , find . Q10:

Classify the following pair of angles as complementary, supplementary, vertical, or neither. • Aneither
• Bcomplementary
• Csupplementary
• Dvertical