Which of the following is true of the constructions of an equilateral triangle, a square, and a regular hexagon when they are inscribed in circles?
O The diameter in the first step of the constructions divides each shape in half.
O Three diameters are needed to construct each inscribed polygon.
O The arc in step two of each construction divides the circle in half.
O The line segments that form each shape are congruent to the diameter of the circle.

I took the test and used the answer above me but it is incorrect, so it IS NOT C.

Step-by-step explanation:

here’s a picture, took one for the team

No solution : there is no number of boxes that she bought

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for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

1 the 1st term, 3 the 2nd term, 6 the 3rd term,etc.

note the following:

from the 1st term (1) to the 2nd term (3), we go up by 2,from the 2nd term (3) to the 3rd term (6), we go up by 3from the 3rd term (6) to the 4th term (10), we go up by 4, andfrom the 4th term (10) to the 5th term (15), we go up by 5.

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for