Question

construct a triangle ABC whose perimeter is 12cm and side are in the ratio of 3 ratio 4 ratio 5 ​

Answer 1

here let the side taken were 3x,4x,5x

now perimeter of triangle is 12 cm

AB + BC + CA = 12

3X + 4X + 5X = 12

X(3+4+5)=12

X=12/12

X= 1

hence sides are 3 cm, 4 cm, 5 cm