Vertical Angles and Linear Pairs - Level 1

What is the m∡4?

• 59°

• 33°

• 121°

• 147°

Answer explanation

Angle 4 is vertical to the 59 degree angle. They are both formed by 2 intersecting lines and touch only at the vertex. Vertical angles are congruent.

Tags

CCSS.7.G.B.5

Angle 3 and angle 1 are...

• Vertical

• Supplementary

• Congruent

• Linear pair

Answer explanation

Angle 1 and 3 are vertical. This makes them also congruent.

Tags

CCSS.7.G.B.5

What is the measure of angle 2, in degrees?

(a)  

Answer explanation

Angle 2 is vertical with the 33 degree angle. That makes them congruent.

Tags

CCSS.7.G.B.5

Angle 2 and angle 3 are...

• Vertical

• Linear Pair

• Congruent

• Supplementary

Answer explanation

Together 2 and 3 make a straight line, so they are a linear pair.

When angles make a straight line together, they sum to 180 degrees, so they are supplementary.

Tags

CCSS.7.G.B.5

Match the following

• 47°

• 43°

• 43°

• 90°

Tags

CCSS.7.G.B.5

Answer explanation

These two angles are supplementary because they make a straight line together (linear pair). To find the missing angle, I can do 180-35 to find the answer.

Tags

CCSS.7.G.B.5

• Impossible to calculate.

Answer explanation

Angle b measures 90 degrees because it is vertical with the 90 degree angle and vertical angles are congruent.

Tags

CCSS.7.G.B.5

Answer explanation

Because angle b is vertical to the 73 degree angle, they are congruent.

Tags

CCSS.7.G.B.5