Question

if these two shapes are similar, what is the measure of the missing length s?
s
100 m
8 m
80 m
s = \boxed{} meters

Explanation:

Step1: Set up similarity proportion

$\frac{s}{8} = \frac{100}{80}$

Step2: Simplify the right-hand ratio

$\frac{s}{8} = \frac{5}{4}$

Step3: Solve for s by cross-multiplying

$s = 8 \times \frac{5}{4}$

Answer:

10 meters