6th gr Area perimeter Flashcards

1
Q

Formula for area of a rectangle

A

length times width A = lxw

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2
Q

Formula for area of a square

A

side times side A = s x s

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3
Q

Formula for area of a parallelogram

A

base times height A = b x h

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4
Q

Formula for area of a triangle

A

base times height divided by 2 A =b x h ÷ 2

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5
Q

How do you find the perimeter of any polygon?

A

add up all the sides

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6
Q

What does composite figure mean?

A

made up of more than 1 polygon

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7
Q

Why is the formula for a triangle base times height divided by 2?

A

because it is half of a rectangle or parallogram

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8
Q

How do you label area?

A

squared ft^2

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9
Q

For the triangle area formula, how do you know what numbers are the base and height?

A

they form a right angle or are perpendicular

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10
Q

IF you know the area of a square or rectangle and one side, what math do you use to work backwards to find other side?

A

the opposite of multiplying is dividing

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11
Q

If you know the perimeter of a rectangle and one side, what math do you use to work backwards to find the other side

A

the opposite of adding is subtracting

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