<span>subtract 2 from the number of sides, and multiply the difference by 180</span>
Answer:
way to hard sorry cant help you
Hi this is the answer and explaination
I'm sorry if it's incorrect
hope's it's help
Answer:
16, 74
Step-by-step explanation:
3x +10 + 12x +50 = 90
15x + 60 = 90
15x = 90 -60
15x = 30
x = 30/15
x = 2
3x + 10 = 3*2 +10 = 6 +10 = 16
12x + 50 = 12*2 +50 = 24 + 50 = 74