Lab: Formula Playground
Pick a famous formula, choose the unknown, plug in numbers — the lab rearranges and checks.
Formula playground
Choose a formula and an unknown, enter the known values, then solve.
Try it
Challenge: a rectangle has area 48 and length 8. Find the width.
Pick A = lw, solve for w, enter A = 48 and l = 8.
Not solved yet.
What to notice: the lab rearranges the formula first, then substitutes — the same two-phase habit that keeps literal equations clean.
The formulas
d = rt (distance) · A = lw (rectangle area) · P = 2l + 2w (perimeter) · V = lwh (box volume) · F = ma (force). Every formula can be solved for any of its letters.