Please help with the image!! Use the Exterior Angle Theorem to find the measure of each angle. 83 points!!!!!!
2 answers:
Answer:
Step-by-step explanation:
solve E 1st as its the easiest -
<E + 113deg = 180deg
<E = 180 - 113 = 67deg
by exterior angle theorem, <C + <D = 113deg
so 3y+5 + 7y+8 = 113
10y=100
y=10
<C = 3(10)+5 = 35deg
<D = 7(10)+8 = 78deg
Answer:
D = 78
C = 35
DEC = 67
Step-by-step explanation:
Using the theorem, angle D and + angle C = 113 degrees.
Then you can set up the equation 10x + 13 = 113. Then you can find x - it's 10.
Then you plug it back in, and angle D = 78 and angle C = 35
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