how do you find the area of a trapezoid?

- anonymous

how do you find the area of a trapezoid?

- katieb

See more answers at brainly.com

At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this

and **thousands** of other questions

- dumbcow

general formula
h=height
b1=bottom base length
b2=top base length
A = (1/2)*h*(b1+b2)

- anonymous

so I don't need to worry about the side length and degree that they gave me?

- dumbcow

for area no as long as you have all the other information you need

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

- anonymous

I don't have the height but have a side length

- dumbcow

set up right triangle by drawing line straight down from where side meets top

- dumbcow

which angle did they give you, top or bottom?

- anonymous

they 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

ok to find height you have use trig
sin65 =opposite/hypotenuse = h/14
h = 14*sin65

- anonymous

which is about 12.7
now I just plug it in

- anonymous

A=.5(12.7(12+25))
A= about 235

- anonymous

thanks

- dumbcow

good ;)

- anonymous

wait lol my teacher showed me how to do this next one but I forgot it

- anonymous

tanx=-1
given that 0 degrees is less than or equal to x which is less than or equal to 360 degrees

- dumbcow

tanx = 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

- anonymous

we are solving for x

- dumbcow

thats what i am assuming

- anonymous

yes

- dumbcow

do you have a unit circle?

- dumbcow

this is for w/out calculator
if you are allowed to use calculator
you could enter arctan(-1)

- anonymous

I'm using a TI-83 a way old version of graphing calcs

- anonymous

and no unit circle

- dumbcow

haha hey thats what i use
ok what do you get when you enter arctan(-1)

- anonymous

and exactly how am I supposed to enter arctan(-1)? lol

- dumbcow

theres a tan^-1 above the tan button

- anonymous

the inverse of tan is = arctan(-1)?

- dumbcow

yes sorry inverse tan is also called arctan

- anonymous

-45?

- dumbcow

good but 0

- anonymous

is there no value?

- dumbcow

neg angle just refers to direction
315 degrees in positive direction is same as 45 degrees in negative direction
think of a circle

- anonymous

ok got it thanks:)

- dumbcow

i see you

Looking for something else?

Not the answer you are looking for? Search for more explanations.