Respuesta :

A= bh divide by 2 so you'll multiply 10x8 the product would be 80 and so you divide 80 by 2 and get 40 as your result.
Triangle a^2+b^2=c^2
a^2+4^2=10^2
a^2+16=100
Subtract 16
a^2=84
Sq rt of 84 is 9.2ft tall. Answer
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