This hard worksheet asks third graders to reason about angle types and shape rules instead of just counting sides. Multiple-choice items cover acute angles, the 2 pairs of perpendicular sides in a rectangle, and the 10 vertices of a decagon, plus what is always true about a parallelogram. Fill-in-the-blank questions then dig into obtuse angles, the 5 equal angles of a regular pentagon, and naming a 9-sided nonagon.
It builds the kind of careful reasoning kids need to handle shape hierarchies in fourth grade.
Style:
Attributes of Shapes
Part A: Multiple Choice
Circle the best answer for each question.
1. Which type of angle is smaller than a right angle?
A) Obtuse
B) Right
C) Acute
D) Straight
2. Which shape always has 2 pairs of perpendicular sides?
A) Trapezoid
B) Rectangle
C) Rhombus
D) Parallelogram
3. How many vertices does a decagon have?
A) 8
B) 9
C) 10
D) 12
4. Which statement is true about every parallelogram?
A) It has 4 right angles
B) Opposite sides are parallel and equal
C) All 4 sides are equal
D) It has exactly 1 pair of parallel sides
Part B: Fill in the Blank
Write the correct answer on each line.
1. An angle that measures more than 90 degrees is called an obtuse angle.
2. A rectangle has 2 pairs of perpendicular sides.
3. Every rectangle is a parallelogram, but not every parallelogram is a rectangle.
4. A regular pentagon has 5 equal angles.
5. A polygon with 9 sides is called a nonagon.
Attributes of Shapes
★ Part A: Multiple Choice
Circle the best answer for each question.
1. Which type of angle is smaller than a right angle?
A) Obtuse
B) Right
C) Acute
D) Straight
2. Which shape always has 2 pairs of perpendicular sides?
A) Trapezoid
B) Rectangle
C) Rhombus
D) Parallelogram
3. How many vertices does a decagon have?
A) 8
B) 9
C) 10
D) 12
4. Which statement is true about every parallelogram?
A) It has 4 right angles
B) Opposite sides are parallel and equal
C) All 4 sides are equal
D) It has exactly 1 pair of parallel sides
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) An angle that measures more than 90 degrees is called an obtuse angle.
2) A rectangle has 2 pairs of perpendicular sides.
3) Every rectangle is a parallelogram, but not every parallelogram is a rectangle.
4) A regular pentagon has 5 equal angles.
5) A polygon with 9 sides is called a nonagon.
Ready to Practice?
Complete each section carefully.
9 Questions
12-18 minutes
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