chloerodgers56
30.07.2021 •
Mathematics
I need help!!
Find the height of this cone using the Pythagorean Theorem.
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Ответ:
h = 4sqr(3)
Step-by-step explanation:
r = d/2
d = 8
r = 8/2
r = 4
a = 4
c = 8
b = h = ?
a^2 + h^2 = c^2
4^2 + h^2 = 8^2
16 + h^2 = 64
h^2 = 64 - 16
h^2 = 48
sqrt(h^2) = sqrt(16*3)
h = 4 sqrt3)
Ответ:
1/2
Because sin a = cos( 90-a)
so, cos(90-30) = sin 30 = 1/2