Question

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Answer 1

Explicación paso a paso:

8) 0.5

9)sen60°= c.o/12

$\frac{ \sqrt{3} }{2} = \frac{c.o}{12}$

c.o= 10.4

10) cos40°= 11/h

$h = \frac{11}{cos(40)} = 14.4$