Plane Figur Flashcards

1
Q

Kvadrat areal

A

a² = A

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2
Q

Kvadrat omkreds

A

4a = O

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3
Q

Rektangel areal

A

a • b = A

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4
Q

Rektangel omkreds

A

2 • (a + b) = O

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5
Q

Parallelogram areal

A

a • h = A

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6
Q

Trapez areal

A

(a + b) • h ÷ 2 = A

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7
Q

Rombe areal

A

a • b ÷ 2 = A

a = diameter 1
b = diameter 2

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8
Q

Rombe omkreds

A

4a = O

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9
Q

Cirkel areal

A

π • r² = A

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10
Q

Cirkel omkreds

A

2 • π • r² = O

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