Find the long base $ a $ of a trapezoid if short base $b = 64$ and median $m = 80$.
Answer
$a = 96$
Explanation
To find long base $ a $ use formula:
$$ m = \frac{ a + b } { 2 } $$After substituting $ m = 80 $ and $ b = 64 $ we have:
$$ 80 = \frac{ a + 64 } { 2 } $$ $$ 80 \cdot 2 = a + 64 $$ $$ a + 64 = 160 $$ $$ a = 160 - 64 $$ $$ a = 96 $$This page was created using
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