Find the long base $ a $ of a trapezoid if short base $b = 18$ and median $m = 25$.
Answer
$a = 32$
Explanation
To find long base $ a $ use formula:
$$ m = \frac{ a + b } { 2 } $$After substituting $ m = 25 $ and $ b = 18 $ we have:
$$ 25 = \frac{ a + 18 } { 2 } $$ $$ 25 \cdot 2 = a + 18 $$ $$ a + 18 = 50 $$ $$ a = 50 - 18 $$ $$ a = 32 $$This page was created using
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