in this blog imma talk about section 9-2. this section is trying to get you to find the area of a right triangle or a non right triangle and it is two very simple formulas.
first formula
1/2 bh only use this for a right triangle
second formula
1/2 bh sin(angleb/w) only use this formula for a non right triangle.
those are the two formulas now you pretty much just plug the numbers in.
ex. two sides of a triangle have lengths 7cm & 4cm. the angle between the sides measure 73 degrees. find the area of the triangle.
you use a=1/2 ab sin theta
then you just plug in the numbers to that formula
a=1/2 (7)(4) sin73 degrees
a=14sin73 degrees
a=13.399 cm squared. (final answer)
that is what i learned in section 9-2. it is very easy aslongas you know the formulas and you just plug the numbers into them. that is pretty much this whole chapter. you have to know the formulas if you want to pass the chapter. there aren't that many formulas to remember so don't be lazy and not know them. if you do that then you should just quit.
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