Perimeter of a right angled triangle = 234 m Sum of other two sides = 234 - 97 = 137 m. By Pythagoras theorem, (a)2+(137−a)2 + 137 − a = 97 a2 +18,769 + a2 − 274a = 9,409 2a2 − 27a + 9,360 = 0
a2 −137a + 4,680 = 0 a2 − 72a − 65a + 4,680 = 0 (a − 72) (a − 65) = 0 a = 72,65 a = 72, b = 137 − 72 = 65