Question

All measurements are in centimetres the total length of the five rods in L cm
Find a formula for L in terms of a

Answer 1

If we let the lengths of the five rods be a, b, c, d, and e centimetres, then the total length of the five rods is simply the sum of their lengths:

L = a + b + c + d + e

So, the formula for L in terms of a is L = a + b + c + d + e.