I would set all 3 given measures equal to 180.
13x-9+4x+11+2x+7 = 180
19x +9 = 180
19x = 171
x= 9
angle l = 4 (9) + 11= 47
answer = 47
B. 107 bc 26.5+34.2= 60.7+45.8= 106.5 round that to be 107.
1 plus 1 is 2.
Use your fingers, put up one finger and one finger. Put them together and you have two
Hope this helps
A triangle with sides measuring 300, 400 and 700 because 300+400+700=1400 which is higher than the first triangle 300+400+500=1200
