Ask your own question, for FREE!
Mathematics 11 Online
OpenStudy (anonymous):

Find the sum of the measures of the angles of the figure. A) 900 B) 720 C) 1,440 D) 1,080

OpenStudy (anonymous):

OpenStudy (superdavesuper):

sum of all internal angles for a triangle is 180; for a rectangle is 360, for a pentagon (5 side) is 540. So what do you think of your figure?

OpenStudy (anonymous):

720 ?

OpenStudy (superdavesuper):

Yup yup :)

OpenStudy (anonymous):

can you help me w some more.

OpenStudy (superdavesuper):

only if its easy :P

OpenStudy (anonymous):

For the rectangle , find the coordinates of P without using any new variables . A) (b,a) B) (a,b) C) (a,a) D) (b,b)

OpenStudy (superdavesuper):

What is the x-coordinate of P?

OpenStudy (anonymous):

a

OpenStudy (superdavesuper):

hehehee u know wat im gonna 2 ask next right? ;)

OpenStudy (anonymous):

whats the y-coordinate lol it's b . this question was actually easy idk why I didn't get it at first.

OpenStudy (superdavesuper):

Hahaa its okay u figure it out all by urself now ;)

OpenStudy (anonymous):

If A(-1,3), B(4,4) and C(8,1), then classify triangle ABC as scalene , isosceles , or equilateral. A) the answer cannot be determined. B) isosceles C) scalene D) equilateral

OpenStudy (superdavesuper):

oh this one is tougher - u need to figure out the length between A-B, B-C and C-A. Do u know how to do that using the formula a^2+b^2=c^2?

OpenStudy (anonymous):

nope lol

OpenStudy (superdavesuper):

OK lets start by A and B. Imagine a right-angled triangle (ignoring C n the existing triangle for now) with A-B as diagonal...okay?

OpenStudy (anonymous):

okay

OpenStudy (superdavesuper):

What are the lengths of the two sides of the new right-angled triangle?

OpenStudy (anonymous):

I have no idea , honestly lol im so bad at math . I know absolutely nothing. idek hhow I made it to Geometry .

OpenStudy (superdavesuper):

Go to http://www.desmos.com/calculator and u can enter (-1,3) and (4,4) then see if they form a right-angled triangle, what the lengths of the other two sides are.

OpenStudy (superdavesuper):

|dw:1389599954623:dw|

OpenStudy (anonymous):

idk what this is showing me lol all I know is its a right triangle , & the one side is (4,4) .

OpenStudy (superdavesuper):

OK the y-side of this new triangle is 4-3=1; what about the x-side?

OpenStudy (anonymous):

lol I think I figured it out . is it scalene ?

OpenStudy (superdavesuper):

hehee tell me how u figure it out? did u draw it?

OpenStudy (anonymous):

lol nope , I looked in my geometry book for the answer.

OpenStudy (superdavesuper):

>=< but i wuld let it slide this time lol

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!