The perimeter of a right-angled triangle is 72 cm. The lengths of its sides are in the ratio 3 : 4 : 5 Work out the area of the triangle.
72 / (3+4+5) = 6base :36 = 18height :46 = 24area = (base * height) /2area = (18*24)/2=216 cm ^2
72 / (3+4+5) = 6base :36 = 18height :46 = 24area = (base * height) /2area = (18*24)/2=216 cm ^2
