Answer:
vertical angles
∠1 and ∠3 are vertical angles. Their measures are equal, so m∠3 = 90 . ∠1 and ∠2 are supplementary.
Step-by-step explanation:
Remember in every triangle, the sum of the angles adds to 180 degrees. So let us call the smallest angle's measure "A". The largest angle is 3A and the third angle is A+10. So A + 3A + (A + 10) = 180.
P=1500x.8+100
1500x.8=1200
1200+100=1300
Answer=1300
Answer:
9
Step-by-step explanation:
I'M TELLING U THE ANSWER IS 9
