NNAT Geometric Concepts and Shape Properties 1 — Questions and Answers
Question 1: Which shape has exactly 4 sides of equal length AND 4 right angles?
- Rectangle
- Square (Correct answer)
- Rhombus
- Trapezoid
Correct answer: Square
A square is the only quadrilateral with both four equal sides and four right angles.
Question 2: How many lines of symmetry does a circle have?
- 0
- 1
- 4
- Infinite (Correct answer)
Correct answer: Infinite
A circle can be folded along any diameter and the halves will match, giving it infinite lines of symmetry.
Question 3: A flat shape with exactly 3 sides and 3 angles is called a:
- Pentagon
- Hexagon
- Triangle (Correct answer)
- Quadrilateral
Correct answer: Triangle
A triangle is defined as a polygon with exactly three sides and three interior angles.
Question 4: Which of the following shapes has exactly 6 sides?
- Pentagon
- Octagon
- Hexagon (Correct answer)
- Heptagon
Correct answer: Hexagon
A hexagon has exactly 6 sides; 'hex' is the Greek prefix for six.
Question 5: What type of angle measures exactly 90 degrees?
- Acute
- Obtuse
- Right (Correct answer)
- Straight
Correct answer: Right
A right angle measures exactly 90 degrees and is often marked with a small square symbol.
Question 6: Which of these shapes has NO corners or straight edges?
- Square
- Triangle
- Pentagon
- Circle (Correct answer)
Correct answer: Circle
A circle is a curved shape with no vertices or straight edges, making it unique among common shapes.
Question 7: How many lines of symmetry does an equilateral triangle have?
- 1
- 2
- 3 (Correct answer)
- 6
Correct answer: 3
An equilateral triangle has 3 lines of symmetry, each drawn from a vertex to the midpoint of the opposite side.
NNAT Geometric Concepts and Shape Properties 1
Which shape has exactly 4 sides of equal length AND 4 right angles?