Asked by alex
the transamerica pyramid building shown in the photograph has four faces shaped like isosceles triangles. The measure of a base angle of one of these triangles is about 85. What is the approximate measure of the vertex angle of the triangle?
Answers
Answered by
Steve
call the base angle b, and the vertex angle v.
b+b+v = 180
170+v=180
v = 10
b+b+v = 180
170+v=180
v = 10