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Find the measure of angle A.(First solve for x, then plug it into 9x+4 to get the final answer!)​

Find The Measure Of Angle AFirst Solve For X Then Plug It Into 9x4 To Get The Final Answer class=

Sagot :

Answer:

40 degrees

Step-by-step explanation:

Sum of all angles of triangle is 180 degrees.

So, 80+(9x+4)+(16x-4)=180

80+25x=180

25x=100 -> x=4

So angle A = 9(4)+4= 40 degrees