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The sum(addition) of the measures of the three angles of a triangle is 180 degrees.
is this the column method for addition / subtraction or the column method for multiplication?? The term column method simply means to stack in columns so that the units; tens and hundreds are all lined up.
there are about 5. here is my favourite that i know and it is called the column method ,
The formula is A=1/2bh b=base of triangle h=height of triangle A=area 1/2=divide base times height by 2
If a triangle is obtuse, the orthocenter of the triangle actually lies outside of the triangle. If the triangle is acute, the orthocenter of the triangle lies on the inside of the triangle