Question

size of a triangle are in ratio 4 : 7: 9 and its perimeter is 500m. find its area​

Answer 1

first side= 4x

second side =7x

third side=9x

perimeter = 500m

4x+7x+9x=500

20x=500

x=500÷20

x= 25

first side=4×25=100

second side=7×25=175

third side=9×25=225

area=1/2×base×height

1/2×100×175=700m