The 2 angles at a vertex are supplementary (one interior and one exterior) the exterior angle is = the the sum of the 2 remote interior angles..
Answer:
1
Step-by-step explanation:
6x - 3 =3
6x =3 +3
6x =6
x=6 :6
x=1
I am assuming that you will need to do Pythagorus Theorem to find the 3rd side length. If thats the case then you will need to do the following formula : a^2 + b^2 = <span>√(c)
So 15^2 + 30^2 = </span>√(c)
= 33.5 inches
The third angle would be 115 because 180 - 45 - 20 = 115
I hope this helped.
Her whole wall is 1=6/6 hence what's not white is 1-2/6=4/6=2/3.
2/3 of her wall is green.
