Question

Which proportion could be used to find the length of side b?

Answer 1

A sin23/6.2= sin85/b

Explanation:

Answer 2

the answer is the option A

`(sin23\°)/(6.2)=(sin85\°)/(b)`

Explanation:

Step 1

Find the measure of angle C

we know that

the sum of the internal angles of the triangle is equal to
`180\°`

so

`C= 180\°-72\°-85\°=23\°`

Step 2

Applying the law of sines

`(sinC)/(c)=(sinB)/(b)`

substitute the values

`(sin23\°)/(6.2)=(sin85\°)/(b)`