Question

ab=15 bc=20 area=80 cm² find x​

Answer 1

Answer:

Step-by-step explanation:

$\frac{35+x}{2}$ ( $\frac{35+x}{2}$ - 15)( $\frac{35+x}{2}$ - 20)( $\frac{35+x}{2}$ - x ) = 6400

(35 + x )( 5 + x )( x - 5 )( 35 - x ) = 102400

( 35² - x² )( x² - 25 ) = 102400

x ≈ 33.653 cm or x ≈ 10.838 cm