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 as long as you know the formulas and you just plug the numbers into them. that is pretty much this whole chapter. thought i would go over this since we are in the exam review and this will be our next packet to do.
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