ACT Math Review II

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Front

What is the formula for the slope-intercept form of a linear equation?

Back

The slope-intercept form is given by y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you calculate the volume of a cone?

Back

The volume of a cone is calculated using the formula V = (1/3)πr²h, where r is the radius and h is the height.

Front

If 30% of students come from families with one child, how do you find the number of students not from such families?

Back

To find the number of students not from families with one child, calculate 70% of the total number of students.

Front

What is the relationship between parallel lines and transversals?

Back

When a transversal crosses parallel lines, corresponding angles are equal, and alternate interior angles are equal.

Front

What is the definition of a transversal in geometry?

Back

A transversal is a line that intersects two or more lines at different points.

Front

How do you find the measure of an angle when given the measures of other angles in a triangle?

Back

Subtract the sum of the known angles from 180 degrees to find the unknown angle.

Front

What is the definition of slope in a linear equation?

Back

The slope is a measure of the steepness of a line, calculated as the rise over run (change in y over change in x).

Front

What is the formula for the area of a triangle?

Back

The area of a triangle is given by A = (1/2)bh, where b is the base and h is the height.

Front

How do you convert a linear equation from standard form to slope-intercept form?

Back

Rearrange the equation to solve for y, isolating it on one side.