Question

The parallel sides of isosceles triangle are 2x and 3X if the hypotenuse and area are 4 cm and 60 CM square find its perimeter

Answer 1

let proportionality constant =x so, length of one side of trapezium=2x and other is 3x now,area of trapezium=1/2(2x+3x) x 4 60 cm^2 =10x cm^2x=6now length of parallel sides are =12and 18 cmlength of unparallel sides are equal which are ---length= √{(3)^2+(4)^2}=5 cmnow ,perimeter of trapezium=2(5)+12+18=40cm