Geometry A Polygons and Quadrilaterals Help!
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OpenStudy (anonymous):
Miracrown (miracrown):
we have to go through the definition of each of these things.
Miracrown (miracrown):
do you have an answer you like for this one?
Miracrown (miracrown):
Quadrilateral has four sides, this is obviously quadrilateral in Q1.
OpenStudy (anonymous):
For Q1 i was thinking A
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Miracrown (miracrown):
one way to prove it's a parallelogram is opposite angles are equal.
Miracrown (miracrown):
This case, all angles are 90°,
so opposite angles are equal if the parallelogram.
Miracrown (miracrown):
and yes you're right! :)
OpenStudy (anonymous):
What about Q2?
Miracrown (miracrown):
It is also a square because it has both 90° angles and equal sides.
And a rhombus just has equal sides.
quadrilateral means four sides .
you can have four sides and not be a rectangle or square or parallelogram .
So it can't be any of the ones that say all quadrilaterals .
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Miracrown (miracrown):
What does that leave you with ?
OpenStudy (anonymous):
B :)
OpenStudy (anonymous):
oh goodness no...C
Miracrown (miracrown):
haha yes
OpenStudy (anonymous):
My guess for #3 is D
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Miracrown (miracrown):
Where is Q3?
OpenStudy (anonymous):
in the 2nd attachment. ill post it again
OpenStudy (anonymous):
Miracrown (miracrown):
It is B you make a rhombus, that is a shape with four equal sides, and then if that diagonals are equal, that guarantees angles are 90°.