7.G.2 Study Guide

Tim drew a triangle with one angle of measure 40 degrees and the other 70 degrees. Which triangle did Tim draw?

• A

• B

• C

• D

A triangle has two sides measuring 4 cm and 8 cm. Which length can not be the length of the third side?

• 5 cm

• 7 cm

• 11 cm

• 12 cm

Which 3 angles in the box can be constructed together to form a triangle?

• 20°, 60°, 70°

• 20°, 60°, 90°

• 20°, 70°, 90°

• 20°, 60°, 120°

Which set of side lengths could not be used to construct a triangle?

• 2 inches, 4 inches, 5 inches

• 3 inches, 5 inches, 9 inches

• 4 inches, 8 inches, 11 inches

• 5 inches, 9 inches, 13 inches

Which set of conditions would result in a unique scalene triangle RST?

• RS = 3 feet, ∠R = 50°, ∠T = 50°

• RS = 3 feet, ∠R = 72°, ∠S = 54°

• RS = 3 feet, ∠S = 55°, ∠T = 70°

• RS = 3 feet, ∠S = 50°, ∠T = 60°

Tara draws a triangle with side lengths 3 cm, 5 cm, and 3 cm. What type of triangle is this?

• equilateral

• isoceles

• right

• scalene

A triangle is shown in the figure. Which are reasonable lengths for each side of this triangle?

• p = 2 units, q = 3 units, r = 5 units

• p = 3 units, q = 4 units, r = 5 units

• p = 4 units, q = 4 units, r = 9 units

• p = 5 units, q = 7 units, r = 2 units

A teacher asks four students the question, “Can a triangle have more than one right angle, and why?” The table lists the students’ responses. Which student is correct?

• Bianca

• Gavin

• Paige

• Stewart

As part of a group exercise, four students each randomly selected a card with a side length on it. The table shows the results. Which set of students could form a triangle with their side lengths?

• Will, Aubrey, and Deacon

• Rayna, Will, and Aubrey

• Deacon, Rayna, and Will

• Aubrey, Deacon, and Rayna

Which set of three angles could be the interior measures of a triangle?

• 20°, 40°, 80°

• 30°, 60°, 90°

• 40°, 70°, 80°

• 50°, 60°, 100°