Eureka Lesson 5 Geometry

Find the length of LF.

• 4 units

• 5 units

• 6 units

• 7 units

Find the length of JL.

• 4 units

• 5 units

• 6 units

• 7 units

Find the length of AJ.

• 4 units

• 5 units

• 6 units

• 7 units

Find the length of AB.

• 6 units

• 7 units

• 8 units

• 9 units

Jada says that the perimeter of rectangle JLFE is 22 units and the perimeter of rectangle AJKB is 26 units. Is Jada correct?

• Yes, Jada is correct.

• No, the perimeter of JLFE is 20 units.

• No, the perimeter of AJKB is 24 units.

• No, both perimeters are incorrect.

Jada says that to find the perimeter of polygon ALFEKB, you should add the perimeters of rectangles JLFE and AJKB. She says that the perimeter of polygon ALFEKB is 48 units because 22 + 26 = 48. Explain Jada's mistake.

• Jada included sides of each rectangle that are not sides of the entire polygon.

• Jada forgot to add the sides of the polygon.

• Jada used the wrong formula for perimeter.

• Jada did not measure the sides correctly.

What is the perimeter of polygon ALFEKB?

• 36 units

• 48 units

• 40 units

• 30 units

Find the area of rectangle JLFE.

• 30 square units

• 25 square units

• 35 square units

• 40 square units

Find the area of rectangle AJKB.

• 40 square units

• 30 square units

• 50 square units

• 35 square units

What is the area of polygon ALFEKB?

• 70 square units

• 60 square units

• 80 square units

• 50 square units