Answer:
s = 27
Explanation:
A triangle‘s inner angles add up to 180 degrees in total.
(s + 10) + (4s - 2) + (s + 10) = 180
Combine like terms:
6s + 18 = 180
Subtract 18 from both sides:
6s = 162
Divide by 6 to isolate s:
You need to add or multiply the degres.
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