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, 21.06.2019 17:10
Consider the following equation -167 + 37 = 49 - 21p select the equation that has the same solution as the given equation. o a. p - 5 + ip = 7 - p ob. +55 + 12p = 5p + 16 c. 2 + 1.25p = -3.75p + 10 d. -14 + 6p = -9 - 6p reset next
Answers: 3
Mathematics, 21.06.2019 23:40
Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me
Answers: 1
Mathematics, 22.06.2019 01:50
One cell phone plan charges $20 per month plus $0.15 per minute used. a second cell phone plan charges $35 per month plus $0.10 per minute used. write and solve an equation to find the number of minutes you must talk to have the same cost for both calling plans.
Answers: 2
Spanish, 30.10.2020 17:00
Physics, 30.10.2020 17:00
Mathematics, 30.10.2020 17:00
Mathematics, 30.10.2020 17:00
Mathematics, 30.10.2020 17:00
Mathematics, 30.10.2020 17:00
Mathematics, 30.10.2020 17:00
English, 30.10.2020 17:00