Question

2. Choose one of the pair of starting angles in the table below:: each table has () over them

(a = 50 degrees
y = 110 degrees )

(a= 30 degrees
b=70 degrees)

(c =30 degrees
y=120 degrees)



Please note you are only using 1 of the the selections above, and they will give different results







(a) What is the angle measurement of first unknown angle? Explain the angle relationship you used.
(b) What is the angle measurement of second unknown angle? Explain the angle relationship you used.
Hint: Remember to start with a relationship where you have one unknown.

Answer 1

If A=30 and B= 70 the first unknown angle Y would be 100. When using the E.A.T (exterior angle theorem) you add the 2 remote interior angles to get the exterior angle. (Y)

Unknown angle 2 is a interior angle, so we know all 3 of the interior angles must equal 180.

30+70=100

180-100=80

C=80

Explanation: