Lmn is an isosceles triangle. what is the approximate length of side lm, and what is the approximate perimeter of triangle lmn? round your answer to the nearest tenth.

a.
the approximate length of side lm is 6 units, and the approximate perimeter of triangle lmn is 22.8 units.
b.
the approximate length of side lm is 6 units, and the approximate perimeter of triangle lmn is 22 units.
c.
the approximate length of side lm is 6.4 units, and the approximate perimeter of triangle lmn is 22.8 units.
d.
the approximate length of side lm is 6.4 units, and the approximate perimeter of triangle lmn is 22 units.

, 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

c - they will have the same distribution

step-by-step explanation:

this is the only one that could make sense. : )

60%

step-by-step explanation:

what is the figure? attach a picture.