brittanybyers122
14.11.2020 •
Mathematics
What is the value of y?
39
34
16
20
one of those number is the answer
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Ответ:
20
Step-by-step explanation:
we see here that angle RPN is 180 degrees. SPM is 90 degrees so
angle RPS + angle SPM + angle MPN = 180 degrees
(4y - 10) + 90 + y = 180
(4y - 10) + y = 90
5y - 10 = 90
5y = 100
y = 20
Ответ: