The sides of a are in the ratio 3:4:5 & it's perimeter is 84 CM . Find the length of its sides.
Answers
Answered by
1
Answer:
21, 28, 35
Step-by-step explanation:
sides 3:4:5 then sides will be 3x, 4x, 5x so its perimeter will be = 12x
12x = 84
x = 7
side 3x = 21
4x = 28
5x = 35
Answered by
0
Answer:
sides
let sides are 3x, 4x and 5x
perimeter =84
perimeter = sum of all sides
84 = 3x + 4x + 5x
84 = 12
x = 84/12
x = 7
3x = 3 * 7 =21 cm
4x = 4 * 7 = 28 cm
5x = 5 * 7= 35cm
Step-by-step explanation:
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