Answer:
See below.
Step-by-step explanation:
1) 3 congruent sides and 3 congruent angles: equilateral, equiangular, acute
2) 2 congruent sides and a right angle: right isosceles
3) 2 congruent sides and an obtuse angle: obtuse isosceles
4) 1 obtuse angle and all different lengths of sides: obtuse scalene
5) 1 right angle and all different side lengths: right scalene
6) 2 congruent sides, all acute angles: acute isosceles
7) x + 2 = 10
x = 8
8) 10x + 3 + 10x + 3 + 34 = 180
20x + 40 = 180
20x = 140
x = 7
Supplementary = 180 so 3x+5+7x+6=180 10x+11=180 10x=169 x=16.9 3(16.9)+5 50.7+5 55.7 so 55.7 degrees
Because + and - make - which makes you left with 3-5 which equals to -2 because it gets negative.
