Question

the perimeter of a triangle is 240 cm .the lengths of the sides are 3:4:5. calculate the legths of the longest and shortest sides

Answer 1

Shortest-60cm

Longest-100cm

Answer 2

The shortest length is 60 cm and the longest length is 100 cm.

What is the unitary method?

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

The perimeter of a triangle is 240 cm .the lengths of the sides are 3:4:5.

Total = 3+4+5 = 12

so, 240/12 = 20

then, each part is 20

20 x 5 = 100 (Longest )

20 x 3 = 60  (Shortest )

20 x 4 = 80

To check;

100 + 60 + 80 = 240

Hence, the shortest length is 60 cm and the longest length is 100 cm.

Learn more about the unitary method;

https://brainly.com/question/23423168

#SPJ2