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Formel- og tabelsamling - Undervisningsministeriet

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Trapez<br />

h<br />

b<br />

a<br />

Parallel<strong>og</strong>ram<br />

h<br />

Cirkel<br />

g<br />

d r<br />

O<br />

h: højde<br />

a <strong>og</strong> b: parallelle sider<br />

A: areal<br />

1<br />

A =<br />

2<br />

· h · (a + b)<br />

h: højde<br />

g: grundlinje<br />

A: areal<br />

A = h · g<br />

r: radius<br />

d: diameter<br />

A: areal<br />

O: omkreds<br />

A = π · r 2<br />

O = 2 · π · r eller<br />

O = π · d<br />

<strong>Formel</strong>- <strong>og</strong> <strong>tabelsamling</strong> Folkeskolens afsluttende prøver i matematik<br />

16

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