Mathematics

Mathematics, 02.10.2019 14:30, flowersthomas1969

What is the area of circle? show work !

What is the area of circle? show work !

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Mathematics, 23.07.2019 07:00, queenkimm26

2. if the diameter of a circle changes from 5 cm to 15 cm, how will the circumference change? a. multiplies by 1/3 b. multiplies by 3 c. increases by 10 d. decreases by 10 5. given a circle with a circumference of 33 cm, find the radius. a. 3.24 b. 5.25 c. 6.48 d. 10.50 8. a circle has an area of 36 inches squared. what is the area of a sector of the circle that had a central angle of 30 degrees? show all work!with the above questions(also there is one attached).

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Mathematics, 26.07.2019 16:30, cuhh

At a zoo, the lion pen has a ring-shaped sidewalk around it. the outer edge of the sidewalk is a circle with a radius of 11 m. the inner edge of the sidewalk is a circle with a radius of 9 m. find the exact area of the larger circle find the exact area of the smaller circle. write an expression to find the exact area of the sidewalk (shaded portion). find the approximate area of the sidewalk. use 3.14 to approximate π.find the exact area of the larger circle. show your work. (1 point) a= n x 11 2 a = n? find the exact area of the smaller circle. show your work. (1 point) a= n 9 2 a=n? write an expression to find the exact area of the sidewalk (shaded portion). show your work. (2 points) 11 2 – 9 2 x n find the approximate area of the sidewalk. use 3.14 to approximate π. show your work. (1 point) 11 2 x 3.14 – 9 2 x 3.14=

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Mathematics, 20.09.2019 11:30, nadiarose6366

Me check my work and correct me if i'm wrong. 1.what is the area of the circle in terms of pi if it's 3.7m diameter a)3.4225pi m^2 b)6.845pi m^2 c)7.4pi m^2 d)13.69pi m^2 2.what is the area of the figure to the nearest tenth. 165 degrees and 6 inch radius a)8.6in^2 b)51.8in^2 c)103.6in^2 d)16.5in^2 i already know what it could be. i just need to make sure

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