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OpenStudy (anonymous):
Parth (parthkohli):
Hint: You must use the following theorems.
1) Distance formula for finding the lengths of all the sides.
2) Pythagorean theorem for confirming that we have a right triangle.
3) Heron's formula for finding area.
OpenStudy (anonymous):
yeah i did that i just wanted my answers to be checked
OpenStudy (anonymous):
for the sum of the squares of the length of the legs i got 45 and for the square of the lenght of the hypothenuse i got 45 then the area i got 10.67
hartnn (hartnn):
sum of the squares of the length of the legs is incorrect
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hartnn (hartnn):
how did u get 45 ?
OpenStudy (anonymous):
i meant 65 my bad
hartnn (hartnn):
65 is correct
hartnn (hartnn):
u wrote 45 there
hartnn (hartnn):
area is incorrect
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OpenStudy (anonymous):
so they are both 65 and area 10.67?
hartnn (hartnn):
they are both 65 <----correct
area is not 10.67
hartnn (hartnn):
what are the lengths of legs u got ?
OpenStudy (anonymous):
i have d(A,B)=4 d(b,c)=sqrt65 and d(a,c)=7
hartnn (hartnn):
yes, so legs are 4 units and 7 units
area is half the product of legs
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OpenStudy (anonymous):
14?
hartnn (hartnn):
yup
OpenStudy (anonymous):
can you check something else for me? last one
hartnn (hartnn):
sure
OpenStudy (anonymous):
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hartnn (hartnn):
not symmetric w.r.t y axis
(-2,0) is correct
OpenStudy (anonymous):
no? then which one?
hartnn (hartnn):
if u flip the upper half and lower half, u get the same graph, here x-axis remains axis of symmetry
OpenStudy (anonymous):
hmm i see
OpenStudy (anonymous):
so (3,0) would be x-axis too?
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