The side opposite 30 degrees in a 30-60-90 triangle has a ratio of what?

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The side opposite 30 degrees in a 30-60-90 triangle has a ratio of what?

2006-12-01 01:25:43 · 2 answers · asked by Ferrrell S 1 in Science & Mathematics ➔ Mathematics

2 answers

30-60-90 Degrees Triangle

Let

3 = opposite side

4 = Adjacent side

5 = Hypotenuse

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Sin 30° = side opposite/hypotenuse = 3/5

Cos 30° = side adjacent/hupotenuse = 4/5

Tan 30° = side opposite/side adjacent = 3/4

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Ratio

Sin 30 ° = 3/5
Cos30° = 4/5
Tan30° 3/4

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2006-12-01 02:04:07 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋

opposite 30 is 1/2

opposite 60 is radical 3 divided by 2

opposite 90 is 1

2006-12-01 01:31:32 · answer #2 · answered by steve0stac 2 · 0⤊ 0⤋