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ale4655 [162]
2 years ago
14

Given that y = 10 cm and θ = 55°, work out x rounded to 1 DP.

Mathematics
1 answer:
ElenaW [278]2 years ago
5 0

Answer:

x=8.2

Step-by-step explanation:

First, figure out which trig function you are going to use.

In this problem you are dealing with the opposite side to the angle and the hypotenuse, and if you remember SOH CAH TOA, this requires sine.

sin (55) =opposite/hypotenuse

sin (55) =x/10

multiply both sides by 10 to get 10 * sin (55) = x

10 * sin (55) = 8.2

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