7th Grade Math_ELT #1

Alicia and Jose are calculating the surface area of a box without a top. Alicia claims that the surface area is 256 square inches while Jose calculated that the surface area is 320 square inches.

Which student do you agree with and why? MGSE7.G.6

• Alicia is correct because she found the total surface area by multiplying 8 x 8 x 4 because there are four sides of the box.

• Jose is correct because he found the total surface area by multiplying 8 x 8 x 5 because there are five sides of the box.

What is the area of the triangle shown above? MGSE7.G.6

• 96 square inches

• 384 square inches

• 480 square inches

• 768 square inches

Ariel has made a circular flower garden in her yard and she would like to put a plastic border around it. The garden has a radius of 8 feet. Which expression could be used to find the length (in feet) of plastic border she will need to put around her garden? MGSE7.G.4

• π × 8

• 2 × π × 8

Triangle 1 is a scale drawing of Triangle 2, as shown below.

Based on the information shown in these triangles, what is the length of the side x? MGSE7.G.1

• 1.5

• 7

• 9

• 15.75

Find the area of a circle with a diameter of 2.5 cm. MGSE7.G.4