Question

M<A=9x-7,m<B=7x-9,m<C=28-2x

Answer 1

Answer:

  c, b, a

Step-by-step explanation:

The sum of the three angles is 180, so we have ...

  (9x -7) +(7x -9) +(28 -2x) = 180

  14x +12 = 180 . . . . . . simplify

  14x = 168 . . . . . . . . . . subtract 12

  x = 12 . . . . . . . . . . . . . divide by 14

Now, we can find the values of the angles.

  A = 9·12 -7 = 101

  B = 7·12 -9 = 75

  C = 28 -2·12 = 4

The side lengths are in the same order as the angle measures. Shortest to longest, they are ...

  c, b, a