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The triangle shown below has a hypot...

The triangle shown below has a hypotenuse with a length of 13 feet . The measure of `angle A ` is `20 ^(@)` and the measure of `angle B ` is `70^@` . Which of the following is closest to the length , in feet , of `bar(BC ) `
(Note : ` sin 70^@~~0.9397`
` cos 70^@ ~~ 0.3420`
`tan 70 ^@ ~~ 2.747`)

A

`4.4`

B

`5.0`

C

`12.0`

D

`12.2`

Text Solution

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The correct Answer is:
D
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