Answer:
Step-by-step explanation:
Sum of angles of a triangle = 180
x + (180 - 105) + (180 -140) = 180
x + 75 + 40 = 180
x = 180 -75 - 40
x = 65
You would set it up like this: 150x + 280 = 255x The you just solve.
Answer:
LtoG
7.4072
7.608
7.67
7.7
Step-by-step explanation:
So the area of a triangle formula is a=hb times b /2 so 14 times 20 is 180 divide by 2 is 140
