Find the sum of the first 4 multiples of 3.​

Hello !

The first 4 four multiples of 3 is...

M = {0 , 3 , 6 , 9}

Now , you find the sum of the first 4 multiples of 3.

Sn = (n/2) × (A1 + An)

S4 = (4/2) × (0 + 9)

S4 = 2 × 9

S4 = 18

Final result : the sum of the first 4 multiples of 3 is 18.

I hope I have collaborated !

answer:

in the middle of the venn diagram, you put the triangle, pentagon and hexagon. then the rectangle will be in the side of all angles are congruent