Students classify a 45-45-90 triangle, compute the angle sum of a rectangle, and identify the 90° angle clock hands form at 3:00. Part B has five fill-in-the-blank problems about the 180° triangle sum, a missing quadrilateral angle, and the straight angle clock hands form at 6:00.
Angles in shapes and real-world contexts require students to apply both classification knowledge and angle-sum rules together.
Style:
Angles and Angle Measurement
Part A: Multiple Choice
Circle the best answer for each question.
1. A triangle has two 45° angles. What type of triangle is it?
A) Equilateral
B) Obtuse
C) Right
D) Straight
2. What is the sum of all angles in a rectangle?
A) 180°
B) 270°
C) 360°
D) 400°
3. What angle do the hands of a clock make at 3:00?
A) 60°
B) 90°
C) 120°
D) 180°
4. Each angle of an equilateral triangle measures how many degrees?
A) 45°
B) 60°
C) 90°
D) 120°
Part B: Fill in the Blank
Write the correct answer on each line.
1. The sum of all angles in any triangle is 180 degrees.
2. A quadrilateral has angle measures 80°, 100°, and 90°. The missing angle is 90 degrees.
3. At 6:00 the clock hands form a straight angle.
4. A triangle with one angle of 120° is called an obtuse triangle.
5. If two angles of a triangle are 35° and 55°, the third angle is 90 degrees.
Angles and Angle Measurement
★ Part A: Multiple Choice
Circle the best answer for each question.
1. A triangle has two 45° angles. What type of triangle is it?
A) Equilateral
B) Obtuse
C) Right
D) Straight
2. What is the sum of all angles in a rectangle?
A) 180°
B) 270°
C) 360°
D) 400°
3. What angle do the hands of a clock make at 3:00?
A) 60°
B) 90°
C) 120°
D) 180°
4. Each angle of an equilateral triangle measures how many degrees?
A) 45°
B) 60°
C) 90°
D) 120°
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) The sum of all angles in any triangle is 180 degrees.
2) A quadrilateral has angle measures 80°, 100°, and 90°. The missing angle is 90 degrees.
3) At 6:00 the clock hands form a straight angle.
4) A triangle with one angle of 120° is called an obtuse triangle.
5) If two angles of a triangle are 35° and 55°, the third angle is 90 degrees.
Ready to Practice?
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9 Questions
12-18 minutes
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