Geometry Formulas Flashcards

Remember the geometry formulas (22 cards)

1
Q

Define perimeter.

A

The total distance around a two-dimensional shape.

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2
Q

What is the formula for the area of a rectangle?

A

Length multiplied by width.

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3
Q

Fill in the blank: The circumference of a circle is _______ times the diameter.

A

Pi (π)

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4
Q

True or false: The area of a triangle is base times height divided by two.

A

TRUE

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5
Q

What is the formula for the area of a triangle?

A

1/2 times base times height.

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6
Q

Define volume.

A

The amount of space an object occupies, measured in cubic units.

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7
Q

What is the formula for the volume of a cylinder?

A

Pi times radius squared times height.

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8
Q

Fill in the blank: The Pythagorean theorem states that a² + b² = _______.

A

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9
Q

True or false: A square is a type of rectangle.

A

TRUE

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10
Q

What is the formula for the area of a circle?

A

Pi times radius squared.

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11
Q

Define isosceles triangle.

A

A triangle with at least two equal sides.

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12
Q

What is the formula for the volume of a cube?

A

Side length cubed.

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13
Q

Fill in the blank: The sum of angles in a triangle is _______.

A

180 degrees

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14
Q

True or false: All rectangles are parallelograms.

A

TRUE

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15
Q

What is the formula for the area of a trapezoid?

A

1/2 times (base1 + base2) times height.

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16
Q

Define rhombus.

A

A quadrilateral with all sides equal and opposite angles equal.

17
Q

What is the formula for the surface area of a sphere?

A

4 times Pi times radius squared.

18
Q

Fill in the blank: The diagonal of a rectangle can be found using _______.

A

The Pythagorean theorem.

19
Q

What is the formula for the area of a parallelogram?

A

Base times height.

20
Q

What is the formula for the volume of a cone?

A

1/3 times Pi times radius squared times height.

21
Q

What is the formula for the area of a sector?

A

1/2 times radius squared times angle in radians.

22
Q

What is the formula for the surface area of a cylinder?

A

2 times Pi times radius times height plus 2 times Pi times radius squared.