blakeolson0800
27.09.2019 •
Mathematics
Find parametric equations for the line through (3, 1, 4) that is perpendicular to the plane x ? y + 2z = 9. (use the parameter t.)
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Ответ:
Ответ:
18
Step-by-step explanation:
The altitude = 12
Half of base = x/2
By pythagoras theorem:
(x/2)² = 15² - 12²
x²/4 = 225 - 144
x²/4 = 81
x² = 324
x = 18