Find the sum of the measures of the angles of the figure. A) 900 B) 720 C) 1,440 D) 1,080
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?
720 ?
Yup yup :)
can you help me w some more.
only if its easy :P
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)
What is the x-coordinate of P?
a
hehehee u know wat im gonna 2 ask next right? ;)
whats the y-coordinate lol it's b . this question was actually easy idk why I didn't get it at first.
Hahaa its okay u figure it out all by urself now ;)
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
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?
nope lol
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?
okay
What are the lengths of the two sides of the new right-angled triangle?
I have no idea , honestly lol im so bad at math . I know absolutely nothing. idek hhow I made it to Geometry .
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.
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idk what this is showing me lol all I know is its a right triangle , & the one side is (4,4) .
OK the y-side of this new triangle is 4-3=1; what about the x-side?
lol I think I figured it out . is it scalene ?
hehee tell me how u figure it out? did u draw it?
lol nope , I looked in my geometry book for the answer.
>=< but i wuld let it slide this time lol
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