Identify 2D Shapes

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Answer Key & Explanations

Identify 2D Shapes · Kindergarten · Worksheet 1

1. Which shape has 3 sides? Answer: D. Triangle Solution: A square has 4 sides A circle has 0 straight sides A triangle has 3 sides A rectangle has 4 sides The correct answer is Triangle.
   Full step-by-step solution

   Step 1: A square has 4 sides Step 2: A circle has 0 straight sides Step 3: A triangle has 3 sides Step 4: A rectangle has 4 sides The correct answer is Triangle.

2. A shape has 4 equal sides and 4 right angles. Each side measures 15 centimeters. What is the name of this shape? Answer: C. Square Solution: The shape has 4 sides, so it must be a quadrilateral All 4 sides are equal in length (15 cm each) All 4 angles are right angles (90 degrees each) A rectangle has 4 right angles but not necessarily equal sides A square has 4 equal sides AND 4 right angles A rhombus has 4 equal sides but not…
   Full step-by-step solution

   Step 1: The shape has 4 sides, so it must be a quadrilateral Step 2: All 4 sides are equal in length (15 cm each) Step 3: All 4 angles are right angles (90 degrees each) Step 4: A rectangle has 4 right angles but not necessarily equal sides Step 5: A square has 4 equal sides AND 4 right angles Step 6: A rhombus has 4 equal sides but not necessarily right angles Step 7: A trapezoid has only one pair of parallel sides The correct answer is Square

3. Liam is building a wooden picture frame for his art project. He needs a shape that has exactly 4 equal sides and 4 right angles. Which shape should Liam use for his frame? Answer: A. Square Solution: A rectangle has 4 sides and 4 right angles, but its sides are not all equal A square has 4 equal sides and 4 right angles, which matches exactly what Liam needs A triangle has only 3 sides, so it cannot have 4 equal sides A hexagon has 6 sides, which is more than the 4 sides needed The correct…
   Full step-by-step solution

   Step 1: A rectangle has 4 sides and 4 right angles, but its sides are not all equal Step 2: A square has 4 equal sides and 4 right angles, which matches exactly what Liam needs Step 3: A triangle has only 3 sides, so it cannot have 4 equal sides Step 4: A hexagon has 6 sides, which is more than the 4 sides needed The correct answer is Square.

4. Look at the shape that has 6 sides and 6 corners. All its sides are straight. Which shape is this? Answer: D. Hexagon Solution: A square has 4 sides and 4 corners A triangle has 3 sides and 3 corners A hexagon has 6 sides and 6 corners A circle has 0 sides and 0 corners The shape with 6 sides and 6 corners is a hexagon, so the correct answer is Hexagon.
   Full step-by-step solution

   Step 1: A square has 4 sides and 4 corners Step 2: A triangle has 3 sides and 3 corners Step 3: A hexagon has 6 sides and 6 corners Step 4: A circle has 0 sides and 0 corners The shape with 6 sides and 6 corners is a hexagon, so the correct answer is Hexagon.

5. Liam has a red square block. He also has a blue circle block. How many sides does the square block have? Answer: 4 Solution: We are told Liam has a red square block. A square is a shape with four equal sides and four equal angles. A square is a polygon with exactly 4 sides.
   Full step-by-step solution

   Step 1: Understand the problem. We are told Liam has a red square block. A square is a shape with four equal sides and four equal angles. Step 2: Recall the definition of a square. A square is a polygon with exactly 4 sides. Step 3: Apply this to the block. Since the block is shaped like a square, it must have 4 sides. Step 4: Note that the blue circle block is extra information. A circle has no sides, but the question asks only about the square block, so the circle is irrelevant here. Step 5: Conclude the answer. Therefore, the square block has 4 sides. Final Answer: 4