Angles Review

#1 Which measurement does NOT represent the lengths of 3 sides of a triangle?

• 1 ft, 3 ft, 5 ft

• 3 ft, 5 ft, 7 ft

• 5 ft, 7 ft, 9 ft

• 7 ft, 9 ft, 11 ft

#2 Danny draws a triangle using three angles each measuring 60°. Which statement can be made about Danny's triangle?

• Danny's triangle must have side lengths of 6 cm each.

• Danny's triangle must have side lengths of 3 cm each.

• Danny's triangle could be any isosceles triangle.

• Danny's triangle could be any equilateral triangle.

#3 Pablo draws a triangle with an acute angle. Which statement about the other 2 angles must be true?

• The other 2 angles both must be acute also.

• The other 2 angles both can be obtuse.

• The other 2 angles both can be acute.

• The other 2 angles must be acute and right.

#4 Jose is measuring the angles of a triangle in his math book. He correctly measures the first angle of the triangle at 100°. Which degree measure could be that of another angle in the triangle?

• 100°

• 90°

• 80°

• 70°

#5 Charles claims he can draw a triangle with angle measures of 60°, 130°, and 150°. Which statement about Charles's claim is true?

• It is possible to draw such a triangle because the angles add up to 360°.

• It is possible to draw such a triangle because none of the angles are above 180°.

• It is impossible to draw such a triangle because a triangle cannot contain 2 obtuse angles.

• It is impossible to determine if such a triangle can be drawn without more information on the lengths of the triangle's sides.

#6 What are the lengths of sides that would form an isosceles triangle?

• 5 cm, 2 cm, 4 cm

• 5 mm, 3 mm, 9 mm

• 4 cm, 8 cm, 8 cm

• 2 mm, 5 mm, 6 mm

#7 <X and <Y are supplementary angles. The measure of <X = 3x - 18. The measure of <Y = 2n-27. What is the value of n?

• 45

• 35

• 27

• 18

#8 A triangle is formed by intersecting lines. What is the measure of angle x?

• 141°

• 129°

• 51°

• 39°

#9 Two angles are missing in the diagram. What is the value of b?

• 46°

• 48°

• 86°

• 94°

#10 Three lines intersect to form angles. If <2 is equivalent to (2x-8)°, what is the value of x?

• 62°

• 35°

• 28°

• 18°