The midline of the triangle is 3.6 less than the base of the triangle. Find the sum of the midline of the triangle and the base.

The midline of a triangle is always half the base of the triangle. Let’s solve the problem using the equation, where:

x is the middle line of the triangle;

Then:

2x – the base of the triangle;

Let’s compose and solve the equation:

2x – x = 3.6;

x = 3.6 – the middle line of the triangle.

2x = 2 * 3.6 = 7.2 – the base of the triangle.

3.6 + 7.2 = 10.8 is the sum of the base of the triangle and its midline.

Answer: 10.8