SOLUTION: In an isosceles triangle, the base is 30 centimeters long and the legs are each 17 centimeters long. Find the measure of a base angle to the nearest degree.

Algebra ->  Triangles -> SOLUTION: In an isosceles triangle, the base is 30 centimeters long and the legs are each 17 centimeters long. Find the measure of a base angle to the nearest degree.      Log On


   



Question 923911: In an isosceles triangle, the base is 30 centimeters long and the legs are each 17 centimeters long. Find the measure of a base angle to the nearest degree.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

think of half of the Isosceles triangle:
Per Diagram:
b = (1/2)Base = 15cm and h = 17 sm
∠A = cos(A) = 15/17
∠A = 28° Using Calculator