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Question Number 13978 by tawa tawa last updated on 25/May/17

Answered by b.e.h.i.8.3.4.1.7@gmail.com last updated on 26/May/17

$$a)h^2={13}^2-(8^2+6^2)/4=169-25=144$$$$\Rightarrow h=12$$$$tg\measuredangle oxz=\frac{12}{5}=2.4\Rightarrow \measuredangle oxz={tg}^{-1}2.4=67.{38}^{\bullet }$$$$c)V=6\times 8\times 12=576.◼$$

Commented by tawa tawa last updated on 26/May/17

$$\mathrm{God}\mathrm{bless}\mathrm{you}\mathrm{sir}.$$

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