### Home > GC > Chapter 3 > Lesson 3.1.1 > Problem3-9

3-9.

Rewrite the statements below into conditional (“If …, then …”) form.

1. All equilateral triangles have $120°$ rotation symmetry.

2. A rectangle is a parallelogram.

3. The area of a trapezoid is half the sum of the bases multiplied by the height.

Look at the Math Notes box from Lesson 2.2.3 if you need extra help.

If a shape is an equilateral triangle, then it has $120°$ rotation symmetry.