9514 1404 393
Answer:
m∠T = 45°
Step-by-step explanation:
The sum of angles in a triangle is 180°, so ...
(2x +10)° +(3x -9)° +(6x -19)° = 180°
11x -18 = 180 . . . . . collect terms, divide by °
11x = 198 . . . . . . . . add 18
x = 18 . . . . . . . . . . . divide by 11
Then the angle of interest is ...
m∠T = (3x -9)° = (3·18 -9)°
m∠T = 45°
_____
The other angles are ...
m∠S = 46°
m∠U = 89°
Answer:
90
Step-by-step explanation:
If there are 8 sides to an octagon, that means that there are 4 equal sides remaining. First, we would subtract 70-12=58. 58 is the total perimeter of the four equal sides remaining. We would then divide 58 by 4 to find the length of each side. You should be able to finish this off. I hope this helped!!!
Answer:
i think it is B, i really hope i am right and i apologize if i am not.
2.7 is already rounded to the nearest tenth.