Math Is Fun Forum

huh the sine of 40.. ok you want me to write the full thing ok here it comes 0.64278760968653932632264340990726 well if this is what you wanted and i dont actually round when i did the x10 i just said it short because i dont want to take up much space

oh woops heh heh oh woops i got lazy and woops the answer is 4 i accidentaly did the dividing first than the minusing *slaps self* so actually x would equal 4 heh heh

yep we are just finished the section with multiplying and dividing fractions. But i do know some advanced stuff that average 6th graders dont know

huh i didnt get the "opposite side to the angle" thing

plz pretty plz how about you do tell me the answer and explain how you got it plzzzzz

ok thanks for the tip bob bundy ok so now on to the question. im gonna use cah for this one because im trying to find the opposite ok but first i need to find what length the adjacent side is so i do (on the calculator) cos(40)*10 and got 7.66. so the adjacent side must be 7.66 cm. now to find the opposites length. because im using cah im gonna do 7.66/10 then click cos-¹ oh wait then i go back to 40 XD let me correct myself oh wait uhhh now im stuck but i think that the opposite is 7.66 why do i forget things so easily
(undeveloped brain?, too much info is stored in it in such a young age?)

and just wondering. so you use the tan-¹, or the cos-¹, or the sin-¹ when your trying to find the angle of something? right?

ook im using i think toa because i dont really know and maybe my thing for finding the hypotenuse isnt really a formula maybe i made a mistake or im not even sure it is a formula because im not that good with geometery but thanks bundy for the H=Adj/cos(angle) and i think bundy has answered the question not me well just another failed assingement in life

the plank is 125.34 units long

yep you wouldnt waste your time taking the ladder out

oh so you use tan when you only know one length and one angle and the length is not the hypotenuse and sin and cos when you know the hypotonuse right. correct me if im wrong

sooo the ajacent side measures 100 soo and the angle is 37 hmm so the opposite side length is 60.18 right and to find the hypotanuse i use the pythagian therom and soo 100²+37² = c²  which is also 10,000+1369=11369² so the answer from me to the cat is 106.62 unit and the ground from the cat is 60.18 unit right?