CB is tangent to ⊙A at point C. Find the radius.
Circle A is shown. Line segment A C is...
Mathematics, 05.05.2020 22:07 brae72
CB is tangent to ⊙A at point C. Find the radius.
Circle A is shown. Line segment A C is a radii. Line segment B C is a tangent and it intersects with the circle at point C. A line is drawn from point B to point A and a point is drawn where the line intersects with the circle. The length of the radius is r, the length of C B is 8, and the length of B to the circle is 5.
CB ⊥ AC by the radius-tangent theorem, so ∠C is a right angle.
ΔABC is a right triangle, so apply the Pythagorean theorem.
Use the steps and solve for the radius.
r2 + 82 = (r + 5)2
r2 + 64 = r2 + 10r + 25
Answers: 1
Mathematics, 22.06.2019 00:10
Me its important ! marge runs an ice cream parlor. her speciality is triple chocolate sundaes.she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes . if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours , which function relates her earnings to the number of minutes she works?
Answers: 2
Mathematics, 22.06.2019 01:20
If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4
Answers: 1
Mathematics, 28.10.2020 20:00
History, 28.10.2020 20:00
Physics, 28.10.2020 20:00
Social Studies, 28.10.2020 20:00
Mathematics, 28.10.2020 20:00
English, 28.10.2020 20:00
Mathematics, 28.10.2020 20:00
Mathematics, 28.10.2020 20:00
Mathematics, 28.10.2020 20:00
English, 28.10.2020 20:00