Question

the perimeter of an isosceles triangle is 42 cm and its base is (1whole 1upon/2) times each of equal sides. find the length of each side of the triangle, area of the triangle amd the height of the triangle​

Answer 1

let sides be a each base. 1.5 a perimeter 3.5 a=42. means a=12. base=18. height=√(12^2-9^2)=7.937
area of ∆=9*7.937=71.435