Question

Explain the question. Step by step explanation

Answer 1

Answer:

The first and second side = 23 cm

The third side = 20 cm

Step-by-step explanation:

Let x be the third

∴ x + x + 3 + x + 3 = 66

3x + 6 = 66

3x = 66 - 6

3x = 60

x = 60/3

x = 20 cm