8th grade math end of year review Created by Educational Technology Network. www.edtechnetwork.com 2009 8th grade math end of year review

Angle Relationships in Parallel Lines & Triangles Pythagorean Theorem Volume Scatter Plots Two-Way Tables 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50

Module 11 – 10 Points QUESTION: ANSWER: A ___________ is a line that intersects two parallel lines and forms 8 angles. ANSWER: transversal

Module 11 – 20 Points QUESTION: Angles 1 & 5 are _____________ angles Angles 3 & 6 are _______ _________ angles Angles 2 & 7 are ________ _______ angles Angles 4 & 6 are ______ ______ _______ angles Angles 5 & 8 are __________ angles ANSWER: corresponding; alternate interior; alternate exterior; same-side interior; vertical

Module 11 – 30 Points QUESTION: ANSWER: 180° The sum of the angle measures in any triangle is _______. ANSWER: 180°

Module 11 – 40 Points QUESTION: ANSWER: The Exterior Angle Theorem states that the measure of an ___________ angle is equal to the sum of its _________ __________ angles. ANSWER: exterior; remote interior

Module 11 – 50 Points QUESTION: ANSWER: If two angles of one triangle are congruent to two angles of another triangle, then the triangles are _____________. ANSWER: similar

Module 12 – 10 Points QUESTION: ANSWER: In a right triangle, the two sides that form the right angle are the _____. The side opposite the right angle is the ________. ANSWER: legs; hypotenuse

Module 12 – 20 Points QUESTION: ANSWER: The ______________ _________________ states that the sum of the squares of the legs is equal to the square of the hypotenuse. (a2 + b2 = c2) ANSWER: Pythagorean Theorem

Module 12 – 30 Points QUESTION: ANSWER: The _______________ is always the longest side of a right triangle. ANSWER: hypotenuse

Module 12 – 40 Points QUESTION: ANSWER: The converse of the Pythagorean Theorem states that if a2 + b2 = c2, then the triangle is a _________ __________. ANSWER: right triangle

Module 12 – 50 Points QUESTION: ANSWER: The ____________ _______________ can be used to find the distance between any two points on a coordinate plane. ANSWER: Distance Formula

Module 13 – 10 Points QUESTION: ANSWER: To find the volume of any prism or cylinder, multiply the _____ ____ _____ _____ by the height of the prism or cylinder. ANSWER: Area of the base

Module 13 – 20 Points QUESTION: ANSWER: V = חr2h, is the formula for volume of a __________. ANSWER: cylinder

Module 13 – 30 Points QUESTION: ANSWER: V = ⅓ חr2h is the formula for finding volume of a _______. ANSWER: cone

Module 13 – 40 Points QUESTION: ANSWER: sphere V = 4/3חr3 is the formula for finding the volume of a _____________. ANSWER: sphere

Module 13 – 50 Points QUESTION: ANSWER: If a cylinder and a cone have the same height and radius, which one has a greater volume? ANSWER: The cylinder

Module 14 – 10 Points QUESTION: ANSWER: A ________ _______ is a graph with points plotted to show the relationship between two sets of data. ANSWER: scatter plot

Module 14 – 20 Points QUESTION: ANSWER: A ___________ is a set of closely grouped data. An ________ is a data point that is very different from the rest of the data. ANSWER: cluster; outlier

Module 14 – 30 Points QUESTION: ANSWER: The amount of gas left in your tank as you drive throughout the week represents a ______________ association. ANSWER: negative

Module 14 – 40 Points QUESTION: ANSWER: A __________ ____________ is a straight line that comes closest to the points on a scatter plot. ANSWER: trend line

Module 14 – 50 Points QUESTION: ANSWER: You can find the equation of a trend line by using the _______ ____________ and by finding the y-intercept. ANSWER: slope formula

Module 15 – 10 Points QUESTION: ANSWER: A _________ ________ shows the frequencies of data that is categorized two ways. The rows indicate one categorization and the columns indicate another. ANSWER: two-way table

Module 15 – 20 Points QUESTION: ANSWER: ___________ ____________ is the ratio of the number of times an event occurs to the total number of events. ANSWER: relative frequency

Module 15 – 30 Points QUESTION: ANSWER: A __________ _____________ ________________ is found by dividing a frequency that is not in the Total row or the Total column by the grand total. ANSWER: joint relative frequency

Module 15 – 40 Points QUESTION: ANSWER: A _____________ ______________ _____________ is found by dividing a row total or a column total by the grand total. ANSWER: marginal relative frequency

Module 15 – 50 Points QUESTION: ANSWER: A __________ _____________ _____________ is found by dividing a frequency that is not in the Total row or the Total column by the frequency’s row total or column total ANSWER: conditional relative frequency