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The radius of a circle is 26 cm and the length of the perpendicular from the center to the chord AB is equal to 10 cm. The length of AB is: 
  • a)
    24 cm
  • b)
    20 cm
  • c)
    44 cm
  • d)
    48 cm 
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
The radius of a circle is 26 cm and the length of the perpendicular fr...
According to the question,

OA = r = 26 cm.
OB′ = 10 cm 

(Using Pythagoras theorem)

∴ AB = 2 × AB′ = 2 × 24 cm = 48 cm.
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Community Answer
The radius of a circle is 26 cm and the length of the perpendicular fr...
To find the length of the chord AB, we can use the formula for the length of a chord given the radius and the perpendicular distance from the center to the chord.

Given:
Radius of the circle, r = 26 cm
Length of the perpendicular from the center to the chord, h = 10 cm

Using the formula,
Length of chord AB = 2 * sqrt(r^2 - h^2)

Calculating the value,
Length of chord AB = 2 * sqrt(26^2 - 10^2)
= 2 * sqrt(676 - 100)
= 2 * sqrt(576)
= 2 * 24
= 48 cm

Therefore, the length of chord AB is 48 cm. Hence, the correct answer is option D.
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