The answer is D.
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1 answer:
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Answer:
BC ≈ 14.7 m
Step-by-step explanation:
Using the Sine rule in Δ ABC
=
To find ∠ A subtract the 2 given angles from 180°
∠ A = 180° - (90 + 28)° = 180° - 118° = 62°
Then
=
( cross- multiply )
BC × sin28° = 7.8 × sin62° ( divide both sides by sin28° )
BC = ≈ 14.7 m ( to 3 significant figures )
Answer:
<h2>x = 745.5 ft</h2>Step-by-step explanation:
Look at the picture.
Use sine:
We have a measure of the angle and length of the opposite:
Substitute:
<em>cross multiply</em>
<em>divide both sides by 4695</em>
