ladybugys
29.01.2021 •
Mathematics
HELP PLS I NEED IT ASAP
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Ответ:
X=18
Step-by-step explanation:
Pentagon = 540 degrees total
Find Known Angel total:
95+ 90= 185
subtract from 540:
540-185=355
add all unknown angles together:
(7x-4)+ (3x+23)+(9x-6)= 19x+13
set up equation and solve
19x+13=355
19x=355-13
19x= 342
x=342/19
x=18
Ответ:
What are they?
Step-by-step explanation: