Question

Construction of a triangle whose sides are in the ratio of 4:5:7 and its perimeter 320mm

Answer 1

let sides be -) 4x & 5x & 7x
perimeter of triangle=sum of sides
320 = 4x + 5x + 7x
320 = 16x
x = 320/16
x = 20mm
★hope it helps you!