INVERSE TANGENTGEO200

tan = oppositeadjacent

= tan-1 oppositeadjacent

INVERSE TANGENT: (tan-1) finds the measure of the angle of a right triangle.

opp

TANGENT: finds the length of a side of a right triangle.

adj

INVERSE TANGENTGEO200

Use tan-1 to find to the nearest degree.

A

B C17

8A

B

C

19.311.2

Answer on next slide.

TRY IT!

INVERSE TANGENTGEO200

ANSWER!

= tan-1 178 = 65°

11.219.3

= tan-1 = 30°

Use tan-1 to find to the nearest degree.

A

B C17

8A

B

C

19.311.2