The perimeter of a triangle is 48 inches and the sides are in the ratio of 3:4:5. Find the length of the longest side.

A) 4
B) 9
C) 16
D) 20

Respuesta :

3,4,5 units
3+4+5=12

the perimiter can be split into 12 units
48=12 units
divide by 12
4=1 units


3<4<5
longest side is 5 units

4=1unit
times both sides by 5
20=5 units

answer is D. 20

Answer:

D) 20

Step-by-step explanation:

got it right on odyssey :)