Trapezoids and Isosceles Trapezoid Basics

A trapezoid is a quadrilateral with exactly one pair of _____ sides.

• parallel
• congruent
• perpendicular
• skew

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.CO.C.9

I am a trapezoid.

• True

• False

Answer explanation

Trapezoids only have 1 pair of parallel sides.

This is a rectangle.

It has 2 pairs of parallel sides.

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

I am a trapezoid.

• True

• False

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

Interior angles of a trapezoid add up to _____.

• 180
• 360
• 540
• None of these

Answer explanation

A trapezoid is a quadrilateral so its interior angles add to 360 degrees and its exterior angles add to 360 degrees.

Angle A and B are ___________.

• Congruent

• Supplementary

• Complementary

• Not Related

Answer explanation

They add to 180 degrees because they would be same side interior angles.

Tags

CCSS.HSG.CO.C.9

Angle A and C are ___________.

• Congruent

• Supplementary

• Complementary

• Not Related

Tags

CCSS.HSG.CO.C.9

Angle D is supplementary to what angle?

• A

• B

• C

• D

Answer explanation

It would have to be angle C because they are same side interior angles.

Tags

CCSS.HSG.CO.C.9

Find the missing angle of the trapezoid.

• 65
• 115
• 180
• None of these

Answer explanation

Angles S and R are supplementary because they are same side interior angles.

So they need to add to 180 degrees.

Tags

CCSS.7.G.B.5

X represents the length of the midsegment

• True

• False

Tags

CCSS.HSG.CO.C.10

Find the value of x.

• 23
• 28
• 30
• Cannot be determined

Answer explanation

To find the midsegment, you add the 2 bases and then cut that answer in half.

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSG.MG.A.1