Is this correct if not why !!!!!!!
2 answers:
Answer:
x ≈ 61.4
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos71° =
=
( multiply both sides by x )
x × cos71° = 20 ( divide both sides by cos71° )
x =
≈ 61.4 ( to the nearest tenth )
<h3>
Answer: 61.4</h3>
====================================================
Explanation:
Use the cosine ratio to get the following,
cos(angle) = adjacent/hypotenuse
cos(71) = 20/x
x*cos(71) = 20
x = 20/cos(71)
x = 61.431 approximately
x = 61.4
Notes:
- The hypotenuse is always the longest side of any right triangle, so x must be larger than 20.
- Make sure your calculator is in degree mode.
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