Question

The sides of a triangle are 12, 15, and 20. If the shortest side of a similar triangle is 3. find the length of the longest side of the triangle.

Answer 1

Solution

For this case we can do the follwong:

For this case we can do the following proportion rule:

$\frac{3}{12}=\frac{b}{20}$

Where b is the longest side and solving we got:

$b=20\cdot\frac{3}{12}=5$

The final answer is 5