SOLUTION: the length of a chord that is 5 cm away from the centre of a circle of radius 13 cm is a. 24 cm b. 12 cm c. 26 cm d. 16 cm i have calculated 16 cm is it wright please tell m

Algebra ->  Volume -> SOLUTION: the length of a chord that is 5 cm away from the centre of a circle of radius 13 cm is a. 24 cm b. 12 cm c. 26 cm d. 16 cm i have calculated 16 cm is it wright please tell m      Log On


   

Question 450517: the length of a chord that is 5 cm away from the centre of a circle of radius 13 cm is
a. 24 cm
b. 12 cm
c. 26 cm
d. 16 cm
i have calculated 16 cm is it wright please tell me sir.
Answer by sudhanshu_kmr(1152) About Me  (Show Source):
You can put this solution on YOUR website!

your answer is wrong.
use Pythagoras theorem,
half length of chord = square root ( 13^2 -5^2)
= square root ( 169 -25 )
= square root( 144)
= 12 cm
length of chord = 24 cm.