Rachel E.

# Help? (find the missing side)

Find the missing side of the triangle below. Estimate answer to one decimal place.

A          b =4        C
x x x x x x x x
x 60°          x
x              x
x            x
x          x
c = 6     x        x  a = ?
x     x
x   x
x x
x
B

Michael J.

If one angle is 60 degrees, then the triangle is an equilateral triangle.  Therefore, side b should be equal to side c.
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01/07/17

Michael J.

Never mind my comment.  That statement I made earlier is a common assumption about triangles with an angle measure of 60 degrees.

You can have a 60-40-80 triangle.  As you can see, the angles are not the same.
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01/07/17

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