Review of 7th-Grade Math 2018-2019

Find the value of x.

• 13

• 8.6

• 6.3

• 130

If you have the side measures of 5in. and 5in. for a triangle, which of the following could be the third side?

• 9 inches

• 10 inches

• 11 inches

• 12 inches

Of the following triangle measurements by angles, which of the following can not form a triangle?

• 90, 45, and 45

• 30, 60, and 90

• 30, 45, and 90

• 60, 60, and 60

If m∠XOZ = 74° and the m∠XOY is 35°, then what is the value of ∠YOZ?

• 16°

• 55°

• 39°

• 35°

Solve.  -9x - 12 = 33

• 45
• -5
• 5
• -9

Solve the equation. Check your solution.

• 80
• 45
• 180
• 5

Serena drew a circle for a surf company logo with an outer rim of 157 centimeters. What is the approximate diameter of the circle she drew?

• 1.57 cm

• 15.7 cm

• 50 cm

• 25 cm

A cruise ship has a large, circular window. It has a diameter of 8 meters. What is the window's area?

• 31.25 m²

• 25.12 m²

• 200.96 m²

• 50.24 m²

A sprinkler that sprays water in a circular motion can be adjusted to spray up to 30 feet. What is the maximum area of lawn that can be watered by the sprinkler?

• 9.55 ft²

• 706.5 ft²

• 183.6 ft²

• 2,826 ft²

What is the solution that matches this situation?

Robbie went parasailing. His sail reached 141 feet. It descended 22 feet before staying in the same place for 10 minutes. What was the height that it stayed in for 10 minutes?

• 163 feet

• 119 feet

• -191 feet

• 19 feet