Answer:NO
Step-by-step explanation:
Answer:
Answer is D
Step-by-step explanation:
(3,-7) and (1,-10) belong toD Variant
Step-by-step explanation:
The sum of all angles in a triangle is always 180.
So we can set up an equation
3/2x+1/2x+x= 180
3/2+1/2x+2/2x=180
3x+1x+2x=360
6x=360
x=60
3+6x+3x+ 6 = 180
9x + 9 = 180
9x = 171
x = 19
