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Mathematics 24 Online
OpenStudy (anonymous):

The figures below show two different ways of arranging four identical triangles of grey poster board on top of a white square. The square has sides equal to x + y, while the hypotenuse of each triangle is represented by the variable c. Hazel wrote the following statements to prove that c2 = x2 + y2. 1. Area of the grey four triangles inside figure A = 2. Area of the white square inside figure A = c2 3. Area of figure A = c2 + 2xy 4. Area of the four grey triangles inside figure B = 5. Area of the two white squares inside figure B = x2+ y2 6. Area of figure B = x2+ y2 + 2xy

OpenStudy (anonymous):

OpenStudy (anonymous):

i need help with this

OpenStudy (anonymous):

im stuck on this Q:

OpenStudy (aripotta):

1. 2xy

OpenStudy (aripotta):

4 is 2xy as well

OpenStudy (anonymous):

yup cuase 2xy is half of 4 al i know is that the secoond number is half the first in this case 4 and 2x i dont think i explained it the best

OpenStudy (anonymous):

its a (1/2 xy) baxy

OpenStudy (aripotta):

wait what

OpenStudy (anonymous):

ignore the baxy i meant a(1/2 xy)=b xy

OpenStudy (anonymous):

yup n did you understand what i ment

OpenStudy (aripotta):

so what exactly are we doing? 1 and 4, yes? are we done now? .-.

OpenStudy (aripotta):

sloth-bear ari is confused

OpenStudy (anonymous):

yes srry for the cunfusion lol

OpenStudy (anonymous):

im doing one of my last test for flvs im on modual 10

OpenStudy (aripotta):

oh ok. coo. tell me if need moar help. i'm not good at proofs and stoof, but maybe i can assist

OpenStudy (aripotta):

for geometry? i just finished that a couple months ago lol

OpenStudy (anonymous):

okey dokey i need all the help i can get thankyou so mch

OpenStudy (anonymous):

yes for geo

OpenStudy (anonymous):

doing proofs

OpenStudy (anonymous):

Use the image shown below to answer the question that follows. The two-column proof below proves the following theorem: The three medians of a triangle all intersect in one point. Statements Reasons Point F is a midpoint of Point E is a midpoint of Draw Draw By Construction Point G is the point of intersection between and Intersecting Lines Postulate Draw By Construction Point D is the point of intersection between and Intersecting Lines Postulate Point H lies on such that By Construction and and Substitution BCGH is a parallelogram Properties of a Parallelogram (opposite sides are parallel) Properties of a Parallelogram (diagonals bisect each other) Which reason is missing from the proof? Properties of a Parallelogram By Construction Midsegment Theorem Intersecting Lines Postulate

OpenStudy (anonymous):

OpenStudy (anonymous):

can you help with this

OpenStudy (aripotta):

i don't understand how you wrote it down. can you take a screen shot of it or something?

OpenStudy (anonymous):

nvm that Q

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