Pre-AP BELLWORK. What to study for test tomorrow… - How to measure angles with a protractor - How to calculate angle measure and missing variables using.

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Presentation transcript:

Pre-AP BELLWORK

What to study for test tomorrow… - How to measure angles with a protractor - How to calculate angle measure and missing variables using angle theorems in section Distance and Midpoint - Finding an endpoint given the midpoint and endpoint - Find the perimeter and area of squares and rectangles. - Find the circumference and area of circles - Factor polynomials - Word Wall words

1-7 Perimeter, Circumference, and AREA

Area(rectangle): bh Perimeter(rectangle):2b + 2h Area(square): s² Perimeter(square): 4s

Ex 1 Find the area and Perimeter. 16 m 33 m Area = Multiply sides

Ex 2 Find the area. 24 ft 66 ft Area = Multiply sides

Ex 3 Find the area and Perimeter. with sides 16.1 cm cm Area = Multiply sides 16.1 cm

Ex 4 Find the area of square with sides 19.2 m m Area = Multiply sides 19.2 m

Ex 5 Graph & Find the area of rectangle ABCD A(-5,6) B(-5,-4) C(-1,-4) D(-1,6) 10 units 4 units

Formulas for Circles AA CC or CC  (use 3.14 for )  r is the radius  d is the diameter

Ex 1 Find the circumference of a circle with a diameter of 7 cm. (use 3.14 for ) C = ( )* ( ) C =21.98 cm

Ex 2 Find the circumference of a circle. (use 3.14 for ) C = ( )* ( ) C = cm 9.8 cm

Ex 3 Find the circumference of a circle with a radius of 3 cm. (use 3.14 for ) C = 2( )* ( ) C =18.84 cm

Ex 4 Find the Area of a circle with radius of 10 cm. (use 3.14 for ) A = ( )* ( ) A =314 cm 2

Ex 5 Find the Area of a circle. (use 3.14 for ) A = ( )* ( ) A = m m r = ½ d r = ½ (1.4) r = 0.7 Notice: They gave us the diameter…

Ex 6 Find the Area of a circle. (use 3.14 for ) A = ( )* ( ) A = m m r = ½ d r = ½ (2.8) r = 1.4 Notice: They gave us the diameter…

Ex.7 Given a circle with a circumference of 94 inches. Find the radius. Find the diameter.

Ex.8 Given a circle with an area of 74 cm². Find the radius.