Which statement regarding the diagram is true?
a)mwxy = myxz
b)mwxy < myzx
c)mwxy + myxz = 180°
d)mwxy + mxyz = 180°

180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.