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anonymous
 5 years ago
how do you find the area of a trapezoid?
anonymous
 5 years ago
how do you find the area of a trapezoid?

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dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.2general formula h=height b1=bottom base length b2=top base length A = (1/2)*h*(b1+b2)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so I don't need to worry about the side length and degree that they gave me?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.2for area no as long as you have all the other information you need

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I don't have the height but have a side length

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.2set up right triangle by drawing line straight down from where side meets top

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.2which angle did they give you, top or bottom?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0they gave me bottom so instead of hte right angle being 90 it's 65 then the angle opposite is 90 and top is 25 the hypotenuse is 14in

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.2ok to find height you have use trig sin65 =opposite/hypotenuse = h/14 h = 14*sin65

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0which is about 12.7 now I just plug it in

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0A=.5(12.7(12+25)) A= about 235

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wait lol my teacher showed me how to do this next one but I forgot it

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0tanx=1 given that 0 degrees is less than or equal to x which is less than or equal to 360 degrees

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.2tanx = sinx/cosx tanx = 1 so sinx/cosx = 1 multiply cosx on both sides sinx = cosx for what x on unit circle is sin opposite of cos

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.2thats what i am assuming

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.2do you have a unit circle?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.2this is for w/out calculator if you are allowed to use calculator you could enter arctan(1)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I'm using a TI83 a way old version of graphing calcs

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.2haha hey thats what i use ok what do you get when you enter arctan(1)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0and exactly how am I supposed to enter arctan(1)? lol

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.2theres a tan^1 above the tan button

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the inverse of tan is = arctan(1)?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.2yes sorry inverse tan is also called arctan

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.2good but 0<x<360 45 = 36045

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.2neg angle just refers to direction 315 degrees in positive direction is same as 45 degrees in negative direction think of a circle
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