ACT Math

Front

What is the formula for calculating the area of a rectangle?

Back

Area = length × width.

Front

What is a trapezoid?

Back

A trapezoid is a four-sided figure (quadrilateral) with at least one pair of parallel sides.

Front

How do you find the percentage of a total?

Back

Percentage = (part/total) × 100.

Front

What is the sum of the interior angles of a trapezoid?

Back

The sum of the interior angles of any quadrilateral, including a trapezoid, is 360 degrees.

Front

What is the product of two complex numbers in the form (a + bi)(c + di)?

Back

Product = (ac - bd) + (ad + bc)i.

Front

How do you reflect a point over the y-axis?

Back

To reflect a point (x, y) over the y-axis, the new coordinates will be (-x, y).

Front

What is the definition of a pie chart?

Back

A pie chart is a circular statistical graphic divided into slices to illustrate numerical proportions.

Front

What is the formula for the area of a trapezoid?

Back

Area = (1/2) × (base1 + base2) × height.

Front

What is the relationship between the angles in a trapezoid?

Back

In a trapezoid, the sum of the angles on the same side is supplementary (adds up to 180 degrees).

Front

How do you calculate the product of complex numbers?

Back

Multiply the real parts and the imaginary parts separately, then combine them.