MATHEMATICS SQUARES SQUARE ROOTS

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Presentation transcript:

MATHEMATICS SQUARES SQUARE ROOTS Free powerpoints at http://www.worldofteaching.com

TODAY’S MATH PREVIEW AREA OF SQUARES AREA OF RECTANGLES AREA OF TRIANGLES CONNECTIONS Exponents Pythagorean Theorem

MATH RELATIONS Square Roots Scientific Calculators

Area of Squares Area formula: A=s² (A=area & s=side) S²means sxs

Area of Rectangles Area formula: A = l x w L = length W = width

Area of Triangles Area formula: A = ½ bh B = base H = height or altitude

Types of Triangles Acute: triangles with angles less than 90º Obtuse: triangles with one angle greater than 90º but less than 180º Right: triangles with one angle equaling 90º

CONNECTIONS Exponents: 7² = 7 x 7 7² where 7 is the BASE and ² is the exponent. Pythagorean Theorem: A²+B²=C² The square root of A & B are legs and the square root of C is the hypotenuse of the right triangle

Square Roots One of the two equal factors of a number. A square root of 144 is 12 since 12 squared = 144.

Scientific Calculator Enter square root symbol before entering the number Press enter or equal