How do you do circle theorems?

The angle at the centre is twice the angle at the circumference.

The angle in a semicircle is a right angle.

Angles in the same segment are equal.

Opposite angles in a cyclic quadrilateral sum to 180°

(hope this helps can I pls have brainlist (crown) ☺️)

Step-by-step explanation:

1. The angle at the centre is twice the angle at the circumference:

2. The angle in a semicircle is a right angle:

3. Angles in the same segment are equal:

4. Opposite angles in a cyclic quadrilateral sum to 180°:

5. The angle between the chord and the tangent is equal to the angle in the alternate segment:

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

20

step-by-step explanation: