📄 1st Grade Math: Basic Geometry and 2D Shapes Worksheet
📌 1. True / False
1. A square has 4 equal sides.
2. A circle has 3 straight sides.
3. A triangle has 3 vertices (corners).
4. A rectangle has only 2 sides.
5. A shape with no straight sides is a circle.
✏️ 2. Fill in the Blanks
1. A is a flat shape with no sides and no corners.
2. A square has four sides.
3. A triangle has three sides and three corners.
4. A rectangle has four straight sides and four .
5. Shapes like squares and triangles are called shapes.
🔗 3. Matching
« A round shape with no straight sides.
« A shape with four equal straight sides and four corners.
« A shape with three straight sides and three corners.
« A shape with four straight sides, where opposite sides are equal.
« A straight line segment that forms part of a shape.
✍️ 4. Short Answer Questions
1. Name two shapes that have four sides.
💡 Suggested Answer: Square, Rectangle.
2. How many corners does a triangle have?
💡 Suggested Answer: Three.
🎯 5. Multiple Choice
1. Which shape has no straight sides?
2. How many sides does a hexagon have?
3. Which of these shapes has four corners and all sides are the same length?
📝 6. Open-Ended Questions
1. Draw a square. How many sides does it have? How many corners does it have?
💡 Solution Steps:
First, draw a shape with four straight lines that are all the same length. Make sure the lines connect to form four corners. Count the lines: a square has 4 sides. Count the points where the lines meet: a square has 4 corners.
2. Imagine you have a shape with 3 straight sides and 3 corners. What shape is it? Draw it.
💡 Solution Steps:
A shape with 3 straight sides and 3 corners is a triangle. To draw it, make three straight lines that connect at three points, forming a closed shape.
3. Look at a door and a window. What 2D shapes do they mostly resemble? How are these shapes similar, and how are they different?
💡 Solution Steps:
A door mostly resembles a rectangle. A window can resemble a square or a rectangle. Both squares and rectangles have four straight sides and four corners. They are similar because they both have four sides and four corners. They are different because in a square, all four sides are the same length. In a rectangle, the opposite sides are the same length, but not all four sides are necessarily equal.
Name Surname: .................................. Date: .... / .... / 202...
Basic Geometry and 2D Shapes Worksheet
SCORE
A. True (T) / False (F)
( .... )
A square has 4 equal sides.
( .... )
A circle has 3 straight sides.
( .... )
A triangle has 3 vertices (corners).
( .... )
A rectangle has only 2 sides.
( .... )
A shape with no straight sides is a circle.
B. Fill in the Blanks
1)
A .................... is a flat shape with no sides and no corners.
2)
A square has four .................... sides.
3)
A triangle has three .................... sides and three corners.
4)
A rectangle has four straight sides and four .....................
5)
Shapes like squares and triangles are called .................... shapes.
C. Matching Concepts
( .... )
A round shape with no straight sides.
- Square
( .... )
A shape with four equal straight sides and four corners.
- Side
( .... )
A shape with three straight sides and three corners.
- Circle
( .... )
A shape with four straight sides, where opposite sides are equal.
- Rectangle
( .... )
A straight line segment that forms part of a shape.
- Triangle
D. Short Answer Questions
1)
Name two shapes that have four sides.
2)
How many corners does a triangle have?
E. Multiple Choice Questions
1)
Which shape has no straight sides?
A) SquareB) CircleC) TriangleD) Rectangle
2)
How many sides does a hexagon have?
A) 3B) 4C) 5D) 6
3)
Which of these shapes has four corners and all sides are the same length?
A) RectangleB) TriangleC) SquareD) Circle
F. Open-Ended Questions
1)
Draw a square. How many sides does it have? How many corners does it have?
2)
Imagine you have a shape with 3 straight sides and 3 corners. What shape is it? Draw it.
3)
Look at a door and a window. What 2D shapes do they mostly resemble? How are these shapes similar, and how are they different?