Kelly is three years younger than her sister. The sum of their ages is 34 years. How old is Kelly and how old is her sister?
1 answer:
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Notice the point R
is a vertex between two "vertical angles"
those two folks are also the same
so now, we have the left triangle has angle P equals to angle T on the other triangle
we also have the side on the left triangle of PR equals the side of TR on the other triangle, and those two verticals angles are equal to each other
does ASA ring a bell?
is a vertex between two "vertical angles"
those two folks are also the same
so now, we have the left triangle has angle P equals to angle T on the other triangle
we also have the side on the left triangle of PR equals the side of TR on the other triangle, and those two verticals angles are equal to each other
does ASA ring a bell?