ΔABC is similar to ΔDEF. The ratio of the perimeter of ΔABC to the perimeter of ΔDEF is 1 : 10. If the longest side of ΔDEF measures 40 units, what is the length of the longest side of ΔABC ?

2 units

4 units

16 units

30 units

Question

ΔABC is similar to ΔDEF. The ratio of the perimeter of ΔABC to the perimeter of ΔDEF is 1 : 10. If the longest side of ΔDEF measures 40 units, what is the length of the longest side of ΔABC ?

2 units

4 units

16 units

30 units

anonymous · Answer

@dumbcow

dumbcow · Answer

again set up a proportion using the given ratio 1/10
$$\frac{x}{40} = \frac{1}{10}$$

anonymous · Answer

please just help me> im really just finna give up. i dont even have time to learn the stuff on plato. i just need answers or ima fail:(