Question

Surveyors use a method known as triangulation to map various regions. This method locates points by using a network of triangles. Find the 5 missing angle measures in the survey below.

What is the sum of the measure of all angles at point F? Explain.

Answer 1

Angle B is 122
Angle D is 31
Triangle BFC missing angle is 116
Triangle AFE missing angle is 60
Triangle CFD missing angle is 45

The sum of the measure of all angles at point F would be 360 because all the angles make a circle.