Answer:
x = 17
Step-by-step explanation:
Line l and m are two parallel lines cut across by the transversal line, therefore, the angle measuring 53° and (8x - 9)° are interior angles on the same side. Interior angles on the same side are supplementary.
Therefore:
53° + (8x - 9)° = 180°
Solve for x
53 + 8x - 9 = 180
Collect like terms
53 - 9 + 8x = 180
44 + 8x = 180
Subtract 44 from both sides
44 + 8x - 44 = 180 - 44
8x = 136
Divide both sides by 8
8x/8 = 136/8
x = 17
Probably 2561 but since area equal r^2 I thought it would be 3217
Answer: m = 18
Step-by-step explanation:
m + 2m - 6 = 12 + 2m
Add m and 2m (distribute)
3m - 6 = 12 + 2m
Subtract 2m from both sides
m - 6 = 12
Add 6 to both sides
m = 18
