so there's a right triangle

90 degrees in the bottom left

30 degrees bottom right

15 in length

unknown adjacent

unknown hypotenuse

so i did sin(30) = 15/b

15/sin(30)=30=b

and did tangent(30)=15/a

15 * tan(30)= 8.66=a

is this correct?

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- Aug 6th 2010, 12:51 PMgabrielsome one check my trig!!
so there's a right triangle

90 degrees in the bottom left

30 degrees bottom right

15 in length

unknown adjacent

unknown hypotenuse

so i did sin(30) = 15/b

15/sin(30)=30=b

and did tangent(30)=15/a

15 * tan(30)= 8.66=a

is this correct? - Aug 6th 2010, 12:58 PMAckbeet
What is your "15 in length"? What does that correspond to? The length of the side opposite to the 30 degrees? What is b? The hypotenuse? What is a? The side adjacent to the 30 degrees?

- Aug 6th 2010, 01:36 PMArchie Meade
- Aug 6th 2010, 01:42 PMgabriel
so 15/tan(30) = 25.98 app. 26 is this the final correct answer for a?

- Aug 6th 2010, 01:52 PMArchie Meade