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[DOC File]Circumference and Area of a Circle Exam Questions
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The label is glued together using a 1 cm overlap. There is a 1 cm gap between the label and the top and the bottom of the tin. Find the length and the height of the label. (4 marks) _____ (a) Calculate the area of a circle of radius 8 cm. (3 marks) (b) A semi-circular protractor has a diameter of 9 cm.
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[DOC File]Name:
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10.5 feet and an area of 189 square feet. inches. What is the diameter of the circle? 30) The circumference of a circle is about 100.53 31) The area of a circle is about 201.0619. What. meters. What is the radius of the circle? is the radius of the circle? 32) In bowling, the distance from the foul line 33) A carousel has a diameter of 40 feet.
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In the previous chapters we have explored a variety of ...
Write an equation for a circle where the points (2, 6) and (8, 10) lie along a diameter. Write an equation for a circle where the points (-3, 3) and (5, 7) lie along a diameter. Sketch a graph of . ... Recall that the area of a circle with radius r can be found using the formula . ... Evaluate the cosine of 20 degrees using a calculator or ...
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[DOC File]Lesson #1: Area of Circles
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The formula to find the area of a . The diameter of a circle is 2 times the radius. Find the area of the circle. r = 5 in. Substitute into the area formula. . Example 1: Solve for the area of a circle with a radius equal to 4 meters. (1) Area = 3.14 x (4 x 4) Apply the amounts given in the problem to the formula.
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[DOC File]UNIT: Circles
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Prove that if a radius of a circle passes through the midpoint of a chord, then it is perpendicular to that chord. Discuss your proof. G.G.49b. Using dynamic geometry, draw a circle and its diameter. Through an arbitrary point on the diameter (not the center of the circle) construct a chord perpendicular to the diameter.
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[DOC File]Unit 4: Circles and Area
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1. Find the area of each circle. Round answers to the nearest tenth…one decimal place. a). Area = π × r × r. 5 cm b). diameter = Area = π × r × r. 8.4 m radius = 2. The diameter of a dime is 1.8 cm. Find the area of the dime. diameter = Area = π × r × r. radius =
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[DOC File]Summary of Lesson Lab: CIRCLES
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Objectives: 1) Write the equation of a circle in standard form. 2) Graph the equation of a circle using paper/pencil and a graphing . calculator. 3) Calculate area of a circle and volume of a cylinder. 4) Apply equation and area of a circle and volume of a cylinder in . problem solving situations.
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[DOC File]Lesson Title: Math – Use proportions to compare circle ...
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Using the string, determine the diameter of the hoop. Calculate the circumference. Calculate the area. Hula. Hoop Diameter Circumference. C = πd Area. A=πr2 1 2 3 Answer the following questions: Using your calculations, what is the relationship between circumference and area of a circle?
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[DOCX File]Activity 2.3.1 Stress/Strain Calculations
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A = πr2 (area of circle when using the radius) A = πd2/4(area of circle when using the diameter) By substitution we can combine the stress and strain in Hooke’s Law to get the formula for predicting the deformation of a material.
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Area of a circle calculator using diameter