Answer:
The triangle should be 4 inches tall
Step-by-step explanation:
We can write a proportion to solve. Put the height over the width
20 x
------- = -----------
5 1
Using cross products
20*1 = 5*x
20 = 5x
Divide by 5
20/5 = 5x/5
4 =x
The triangle should be 4 inches tall