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 = x b x h = x 15 x 8 = x 120 = 60cm 2 Perimeter = = 27.6m Area = x b x h = x 6.0 x 5.0 = 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