Question

Find the area of the triangle with perimeter 22 cm one side 9 cm and difference of other two sides is 7 ccm

Answer 1

area= 1/2*b*h
so b=9
     h=7
     =>1/2*9*7
      =63/2
     =32.5cmpower2

Answer 2

9+x+x-7=22,  side2=x=10cm, side3=x-7=3cm
by Heron's theoreme area=13.27cm²