Question

afla lungimea bazei mici a unui trapez , stiind ca inaltimea este de 14 cm baza mare egala cu 6 cm ,iar aria egala cu 49 cm patrati

Answer 1

$A= \frac{(b+B)*h}{2} \\ 49= \frac{(b+6)*14}{2} \\ (b+6)*14=49*2 \\ (b+6)*14=98 \\ b+6 = 98:14 \\ b+6=7 \\ b=7-6 \\ b=1$