Identifying Perfect Squares and Patterns Grade 8 Math Ms. Stewart COPY SLIDES WHEN YOU SEE THIS

To get started… Squares Squares The square of a number is calculated by multiplying the number by itself. The square of 3 is 3 X 3. It can also be written as 3 2 and is read as “three squared.” 3 2 = 3 X 3 or 9

Exercises

Classifying Triangles Acute Angle: An angle that is less than 90° Obtuse Angle: An angle that is greater than 90° but less than 180° Congruent Angles: Have the same angle

Exercises

Perimeter and Area of Squares Review

Perimeter and Area of Triangles Review

Exercises Perimeter = = 28m Area = l x w = 7 x 7 = 49m 2 Perimeter = = 44cm Area = l x w = 11 x 11 = 121cm 2 Perimeter = = 40cm Area = ½ x b x h = ½ x 15 x 8 = ½ x 120 = 60cm 2 Perimeter = = 27.6m Area = ½ x b x h = ½ x 6.0 x 5.0 = ½ x 30.0 = 15.0 Multiply x 2 to get total area 15 x 2 = 30m 2

8. a)

8. b)

Solving for Equations Review

Exercises x =8 x = 9 x = 12 x = 13 x = 11 x = 16 x = 32

Prime Factorization Review "Prime Factorization" is finding which prime numbers multiply together to make the original number. Remember: A Prime number can be divided evenly only by 1 or itself and it must be a whole number greater than 1.

Exercises

Math Discovery Complete Math Discovery Sheet for Chapter 1 Section 1