Answered: 12. A sector of area 2t in? is formed…

12. A sector of area 2t in? is formed by a central angle of 45°. What is the radius of the circle? 13 If the answer needs rounding, round it to three significant digits. r = inches

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter67: Analysis Of Trigonometric Functions

Section: Chapter Questions

Problem 4A: The sector of a circle has an area of 231.3 sq in. and a central angle of 6515'. What is the radius...

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12. A sector of area 21 in? is formed by a central angle of 45°. What is the radius of the circle?
13
If the answer needs rounding, round it to three significant digits.
r =
inches

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A circle has an exact area of 27ft2. aWhat is the area of a sector of this circle if the arc of the sector measures 80? bWhat is the exact perimeter of the sector in part a?
The sector of a circle has an area of 231.3 sq in. and a central angle of 6515'. What is the radius of the circle? Round the answer to 1 decimal place.
Given that CF is a tangent to the circle shown: a)CF=6,AC=12,BC=?b)AG=3,BE=10,BG=4,DG=?c)AC=12,BC=4,DC=3,CE=?d)AG=8,GD=5,BG=10,GE=?e)CF=6,AB=5,BC=?f)EG=4,BC=3,CD=ED,ED=?g)AC=30,BC=5,ED=12,CD=?h)AC=9,BC=5,ED=12,CD=?i)ED=8,DC=4,FC=?j)FC=6,ED=9,CD=?
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