Question

Area of rhombus is 139.2cm square and altitude is 9.6 cm. Find the perimeter of rhombus

Answer 1

Area =139.2 cm sq
Height = 9.6 cm
Area of rhombus = Base × Height
=> 139.2 = Base × 9.6
=> 139.2÷ 9.6 = Base
=> 14.5 = Base

As we know that the sides of the rhombus are equal then all sides measure 14.5cm.
so the perimeter = sum of all sides
= 14.5 + 14.5 + 14.5 + 14.5
= 58.0
= 58 ( answer )