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IceJOKER [234]
3 years ago
7

The equation sin(40)=b\20 can be used to determine the length of the line segment ac. What is the length of ac? Round to the nea

rest tenth. 11.8cm 12.9cm 14.9cm 15.3cm
Geography
1 answer:
creativ13 [48]3 years ago
3 0

Answer: (b)

Explanation:

Given

The given equation can be used to determine the length of the line segment AC i.e.

\Rightarrow \sin (40^{\circ})=\dfrac{b}{20}\\\\\Rightarrow b=20\sin (40^{\circ})

Where, b=\text{length of ac}

\therefore b=20\times 0.642\\\Rightarrow b=12.85\approx 12.9\ cm

Hence, option (b) is correct.

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