jrub1233 jrub1233

04-05-2018
Mathematics

contestada

AB is tangent to circle O at B. Find the length of the radius, r, for AB = 5 and AO = 13.

Respuesta :

sqdancefan sqdancefan

08-05-2018

ΔABO is a right triangle with AB⊥BO. The radius of the circle is BO. The Pythagorean theorem applies.
AO² = AB² + BO²
13² = 5² + r²
169 -25 = r²
r = √144 = 12

The radius (r) is 12.

Answer Link

Risa290 Risa290

06-10-2018

the radius is twelve

Answer Link

Otras preguntas

Which statements are true concerning our interpretation of the results of an experiment? We will always infer a correct conclusion from accurate data. An experi

The blue line represents what river in Georgia?

In 2009, the U.S. Congress passed a law that made it legal for people to file lawsuits about unequal pay at any time, no matter how long it had been since the u

6. The albedo of the Moon is _______ that of the Earth. A. overpowered by B. more than C. the same as D. less than

The coordinates of the points M, N, P, and Q are -11, 32, -15, and 17, respectively. Which point is closest to the origin? M N P Q

Two football players each applied 100 n of force to sack the qb and move him 3 meters downfield. How much work was done?

In 10 minutes a heart can beat 700 times. At this rate, in how many minutes will a heartbeat 140 times? At what rate can a heartbeat?

how does organizing history by theme illustrate continuity

The Berlin blockade after World War II showed Europeans that the USSR

Decide whether the sentence is grammatically correct or incorrect as written Yo conozco la floreria de rosa.