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

What is 386.05679 rounded to the nearest hundredths ?

Which of the following statements is true? A. 15 + 0 = 0 B. 15 – 0 = 0 C. 0 ÷ 15 = 0 D. 15 ÷ 0 = 0

What are depository and non depository financial institutions? How do they differ?

what was not an outcome of the meiji restoration in japan

Which of the following topics is too broad for a 10-minute speech? how to shoot a free throw the best college basketball team this year my favorite basketball p

can someone help me in this I'm not to sure

Find the area of an equilateral triangle (regular 3-gon) with the given measurement in terms with a radical. 6-inch side. A = sq. in.

A character’s motivation — a. is a result of his or her actions b. must sometimes be inferred c. is dependent on the story’s point of view d. never changes i

Which of the following was NOT part of Alexander Hamilton’s plan to build a strong economy in America? a) charter a national bank b) pay off the national debt a

The Velvet Revolution took place in _____. Romania Bulgaria Poland Czechoslovakia