Posted by **Chica** on Sunday, January 30, 2011 at 1:43pm.

For acute angle Aof a right triangle, find tan A by using the 45-45-90 Triangle Theorem or the 30-60-90 Triangle Theorem.

measure of angle A=45 degrees.

- Geometry/Trig. -
**helper**, Sunday, January 30, 2011 at 2:50pm
angle A = 45 deg

Special 45-45-90 deg triangles have sides in the

ratio of 1:1:(sqrt(2)) OR

ratio n : n : n(sqrt(2))

This means, in this problem,

side a = 1 (opposite side)

side b = 1 (adjacent side)

side c = 1*(sqrt(2)) (hypotenuse)

tan A = a/b = op/adj

tan 45 = ?

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