find the perimeter of a triangle with the given dimensions: L=5inches, W=12inches

Question

one side of a triangle is 5 inches, the other side of the triangle is 12 inches. What is the length of the last side?

Answer 1

L = 5 inches, W = 12inches

Now find the third side of triangle is say = x

From the pythageron theory 12^2 + 5^2 = x^2

144 + 25 = x^2

144+25 = x^2

169 = x^2

x =13 inches.

Perimeter of triangle = 13+12+5 = 30inches.