The length of each side of an equilateral triangle is 74mm, correct to the nearest millimeter. calculate the smallest possible perimeter of the triangle.

220.5 mm.

Step-by-step explanation:

The smallest value each side could be is 73.5 mm so the smallest possible perimeter is 3 * 73.5

= 220.5 mm.

, and

for

step-by-step explanation:

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

note the following:

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