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Given that y = 9 cm and θ = 46°, work out x rounded to 1 DP.

Given that y = 9 cm and θ = 46°, work out x rounded to 1 DP.-example-1

1 Answer

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Answer:

6.5 cm

Explanation:

In a right triangle with hypotenuse 9 cm, you want the length of the side (x) that is opposite the 46° angle.

Sine

The sine relation is ...

Sin = Opposite/Hypotenuse

Then the opposite side is ...

x = (9 cm)·sin(46°) ≈ 6.5 cm

The value of x is about 6.5 cm.

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Given that y = 9 cm and θ = 46°, work out x rounded to 1 DP.-example-1
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