" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
s = 1/2 x (12 + 5 + 13) = 15
L = √(s(s - a)(s - b)(s - c)
= √(15(15 - 5)(15 - 12)(15 - 13)
= √(15 x 10 x 3 x 2)
= 30 cm²