Which of the following statements must be true about this diagram? check all that apply.
a. m1 + m2 = m4
b. m1 + m2 = m3
c. m4 is greater than m2
d. m4 is greater than m1
e. m3 is greater than m2
f. m2 + m3 = m4

see the attached figure to better understand the problem

we know that

the sum of the internal angles of a triangle is equal to

so

-----> equation

------> by suplementary angles

solve for m3

-----> equation

substitute equation in equation

----> equation

let's analyze each case

see the equation

see the equation

see the equation

so

see the equation

so

see the equation

so

see the equation

when m1=m3--------> m3+m2=m4

so

therefore

the answer is

step-by-step explanation:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

step-by-step explanation:

given that megan owns a clothing boutique.

the profits of 2010, 11, are recorded and shown as follows:

years since     2010 0     1     2     3       4       5

profits made in 1000's   39       84     111     120   111     84

we find that profit gradually increases form 2010 to 2013 upto 120,   then starts decreasing.

the profits for 2012 and 2014 are the same while that of 2011 and 2015 are also the same.

this shows that there is symmetry about the line profit = 120000

hence answer is:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

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step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice