Question

the DIAMETRE is 82cm and LENGTH of chord is 80 cm .CALCULATE the distance of the chord from the centre of the circle.

Answer 1

Answer:

58

Step-by-step explanation:

radius=2 x diameter

so,

$\frac{42}{2}$ = radius

radius=40

now chord will be half........reason, perpendicular drawn from the center of the circle towards the chord bisects the chord

now use pytha goras theorem

$x^{2}$ = $radius^{2}$ + $chord^{2}$

$x^{2}$  = $42^{2}$ + $40^{2}$

$x^{2}$   = 1764 + 1600

$x^{2}$ = 3364

therefore,

x = $\sqrt{3364}$

x = 58

hence,

answer is 58