Answer:
24 cm
Step-by-step explanation:
The altitude from the centre to the chord is 5 cm and bisects the chord.
The radius of the circle is 26 cm ÷ 2 = 13 cm
There is a right triangle formed with legs 5 and x ( x is half the chord )
The hypotenuse is the radius, then using Pythagoras' identity
x² + 5² = 13²
x² + 25 = 169 ( subtract 25 from both sides )
x² = 144 ( take the square root of both sides )
x =
= 12
Then
length of chord = 2x = 2 × 12 = 24 cm
abc,bca,cba,cab,bac ? then just rotate the others like I did
The answer is 25cm pppppppploollllppppppllllppppllllllllllppplplpplplppllllplplplllpl
Can be achieved by dividing.
___
8 ÷ 9 = 0.8888
Therefore the answer is B
Do you know it in English because then i can help<span />