Two triangles are congruent when they have the same shape and the same size.
Square Root and The Pythagorean Theorem(6.4)
The square root of a positive number (a) is the positive number (b) whose square is (a). if b2 = a
example: a square root of 25 is 5 because 5.5 = 25
Proportions and Problem Solving(6.3)
Writing proportions is a powerful tool for solving problems in almost every field, including business,chemistry, biology, health sciences, and engineering, as well as in daily life.
example: 5miles over 2 inches = x miles over 7inches cross multiply and 5.7=2.x , 35 =2x, divided both by 2, and x = 17.5
Proportions (6.2)
A proportion is a statement that two ratios or rates are equal.
example(2/24=1/12)
Ratios and Rates (6.1)
Rates are used to compare different kinds of quantities.
