What is the value of x ? explain ( chords and arcs )

x ≈ 9.4

Step-by-step explanation:

The segment from the centre is a perpendicular bisector of the chord.

Using Pythagoras' identity in the right triangle formed with hypotenuse 13 and legs 9 and x

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² + 9² = 13²

x² + 81 = 169 ( subtract 81 from both sides )

x² = 88 ( take the square root of both sides )

x = = 2 ≈ 9.4 ( to 1 dec. place )

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl

answer: its c because when it has a magnet next to it it will move away from the mixture. hope this

step-by-step explanation: