3 years ago

Identify ER rounded to the nearest tenth.

Mathematics

1 answer:

anzhelika [568]3 years ago

4 0

Answer:

ER ≈ 17.9

Step-by-step explanation:

Using the cosine ratio in the right triangle.

cos61° = $\frac{adjacent}{hypotenuse}$ = $\frac{ER}{MR}$ = $\frac{ER}{37}$ ( multiply both sides by 37 )

37 × cos61° = ER, then

ER ≈ 17.9 ( to the nearest tenth )

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