fantasticratz2
18.02.2021 •
Mathematics
Please help me with this problem , and please please show your work , I’ll give you brainlist
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Ответ:
Step-by-step explanation:
x+(x+2)+(6x+10)= 180⁰(sum of angles in a triangle)
Open the brackets by +1
x+x+2+6x+10. =. 180⁰
2x+6x+10+2. =. 180⁰
8x+12. =. 180⁰
8x. =. 180⁰-12⁰
8x. =. 168
x. =. 168/8
x. =. 21
x+2=2+21=23
6x+10=6×21+10=126+10=136
A+B+C=180⁰
21⁰+23⁰+136⁰=180⁰
180⁰ =180⁰
PLEASE MARK BRAINLIEST.
Ответ: