Common Core: 1st Grade Math : Geometry

Study concepts, example questions & explanations for Common Core: 1st Grade Math

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Example Questions

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Example Question #1 :Defining Versus Non Defining Attributes: Ccss.Math.Content.1.G.A.1

Why is this shape a rectangle?

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Possible Answers:

Because it hasequal sides

Because it hassides

Because it hassides, and the opposite sides equal each other

Because its color is blue

Because it is bigger than a square

Correct answer:

Because it hassides, and the opposite sides equal each other

Explanation:

A rectangle hassides, and the opposite sides have to be equal.

Example Question #1 :Geometry

Why is this shape a circle?

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Possible Answers:

Because it is a round, closed shape

Beacause it has 4 sides

Because it is small

Because it is a flat shape

Because its color is blue

Correct answer:

Because it is a round, closed shape

Explanation:

A circle is a round shape, with no sides or edges.

Example Question #77 :Geometry

Why is this shape an octagon?

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Possible Answers:

Because it looks like a stop sign

Because it hassides

Because it is blue

Because it hassides

Because it hassides

Correct answer:

Because it hassides

Explanation:

An octagon hassides.

Example Question #1 :Reason With Shapes And Their Attributes

Why is this shape a heptagon?

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Possible Answers:

Because it hassides

Because its blue

Because it hassides

Because it is an open shape

Because it hassides

Correct answer:

Because it hassides

Explanation:

A heptagon hassides.

Example Question #2 :Defining Versus Non Defining Attributes: Ccss.Math.Content.1.G.A.1

Why is this shape a hexagon?

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Possible Answers:

Because it hassides

Because it is blue

Because it hassides

Because it has more sides than a pentagon

Because it hassides

Correct answer:

Because it hassides

Explanation:

A hexagon hassides.

Example Question #1 :Defining Versus Non Defining Attributes: Ccss.Math.Content.1.G.A.1

Why is this shape a pentagon?

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Possible Answers:

Because it is blue

Because it has more sides than a square

Becuase it hassides

Because it hassides

Because it hassides

Correct answer:

Because it hassides

Explanation:

A pentagon hassides.

Example Question #2 :Defining Versus Non Defining Attributes: Ccss.Math.Content.1.G.A.1

Why is this shape a trapezoid?

Screen shot 2015 07 21 at 3.13.10 pm

Possible Answers:

Because it is blue

Because it hassides and one set of parallel lines

Because it hasequal sides

Because it looks like a roof

Because it hassides

Correct answer:

Because it hassides and one set of parallel lines

Explanation:

A trapezoid hassides, and only one set of parallel lines.

Example Question #5 :Reason With Shapes And Their Attributes

Why is this shape NOT a square?

Screen shot 2015 07 21 at 2.55.11 pm

Possible Answers:

Because it does not haveequal sides

Because it does not havesides

Because it is flat

Because it does not havesides

Because it is blue

Correct answer:

Because it does not haveequal sides

Explanation:

A square has to haveequal sides, and this shape does not haveequal sides.

Example Question #3 :Defining Versus Non Defining Attributes: Ccss.Math.Content.1.G.A.1

Why is this shape NOT a circle?

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Possible Answers:

Because it is blue

Because it hassides

Because it has sides

Because it is flat

Because it is an open shape

Correct answer:

Because it has sides

Explanation:

A circle does not have sides, and this shape hassides.

Example Question #4 :Defining Versus Non Defining Attributes: Ccss.Math.Content.1.G.A.1

Why is this shape NOT a triangle?

Screen shot 2015 07 21 at 2.45.18 pm

Possible Answers:

Because it is not a closed shape

Because it is blue

Because it does havesides

Because it does not havesides

Because it is flat

Correct answer:

Because it does not havesides

Explanation:

A triangle hassides, and this shape has.

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