Sunday, January 23, 2011

Nicala's Blog

This week in class we did the last section in chapter four and then we reviewed for the test on friday that i wasnt here to take. I dont remember to much about what we learned this week especially since we had a four day weekend and i didnt come friday but i do remember what i learned in physics with the triangles tht we also learned in physics so i will review that. In chapter nine section we learned how to find the legs, hyp and the angles in the right triangles using pythagorem thereom and SOHCAHTOA.
SOH-sine=opp/hyp
CAH-cosine=adj/hyp
TOA-tangent=opp/adj
example problem
in a ABC triangle, a=12, b=5, c=? solve using the pythagorem theorem= (a)squared+(b)squared=(c)squared
(12)squared+(5)squared=(c)squared
144+25=(c)squared
169=(c)squared
take the square root of 169
c=13

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