The perimeter of the given triangle is 17.9 m. What is the value of side ‘a’ ?
Find the third side of a triangle whose two sides are (3m2−5m) and (4m2+12) and perimeter is (8m2−9m+4).
Find the third side of a triangle whose perimeter is 8m2−9m+4 and two of its sides are 3m2−5m and 4m2+12.