ACT Practice Test 2008 form 61B, questions 15-40

Front

Back

A. x

Front

The diameter of a circle is 10 centimeters. What is its circumference, in centimeters?

Back

10π

Front

In the figure on left, AC || DF, ΔEBF is isosceles with EB = FB, and ∠ABE measures 40°. What is the measure of ∠ABF?

Back

140°

Front

Back

Front

What is the equation of the line that passes through the points (2, 3) and (5, 11) in the standard (x, y) coordinate plane?

Back

Front

What is the relationship between the sides of an isosceles triangle?

Back

In an isosceles triangle, two sides are of equal length, and the angles opposite those sides are equal.

Front

What is the formula for the circumference of a circle?

Back

Front

What is the power of a power property in exponents?

Back

Front

How do you find the slope of a line given two points?

Back

Front

What is the definition of parallel lines?

Back

Parallel lines are lines in a plane that never meet; they have the same slope.