Question

Instructions: Problem 1 ! Find the missing angle in the image below. Do not include spaces in your answers

Answer 1

40 degrees

Explanation:

The 100 degree angle is supplementary to angle CED. This means CED will end up being 80 degrees. Since the angles in all triangles equate to 180 degrees 80 + 60 + angle D must equal 180 degrees. Therefore, angle D has to be 40 degrees.