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25 votes
Please help if your good at geometry. find a

Please help if your good at geometry. find a-example-1
User Pravprab
by
6.0k points

1 Answer

1 vote

Answer:

a = 1.8 to the nearest tenth.

Explanation:

Remark

I don't think this case is ambiguous. It has only 1 solution, I think.

Step One

Find the top angle.

All triangles have 180 degrees.

15 + 105 + x = 180

120 + x = 180 Subtract 120 from both sides

x = 180 - 120

x = 60

Step Two: Find a

a/sin(60) = 2/Sin(105) Multiply both sides by sin(60)

a = 2 * Sin(60) / sin(105)

a = 2 * .8660 / 0.9659

a = 1.793

User James Akwuh
by
6.5k points
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