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Mathematics 15 Online
OpenStudy (anonymous):

help please

OpenStudy (anonymous):

OpenStudy (anonymous):

plz help perl

OpenStudy (perl):

A rhombus has the following properties: Opposite angles of a rhombus have equal measure. The two diagonals of a rhombus are perpendicular; that is, a rhombus is an orthodiagonal quadrilateral. Its diagonals bisect opposite angles.

OpenStudy (anonymous):

thanks

OpenStudy (perl):

one moment checking

OpenStudy (perl):

http://prntscr.com/7oxo4s 3x-26 + x + 90 = 180

OpenStudy (perl):

I got x = 29

OpenStudy (decentnabeel):

so can you expaln it

OpenStudy (decentnabeel):

@perl

OpenStudy (perl):

AD is parallel to CD therefore <DAC = <BCA by alternate interior angles theorem

OpenStudy (perl):

Then use the fact that the diagonals meet at 90 degrees. So we have a triangle that has angles x, 3x-26, 90. Add them up to equal 180, the sum of the angles of any triangle.

OpenStudy (anonymous):

OpenStudy (decentnabeel):

so explain diagonals meet at 90 degrees @perl

OpenStudy (perl):

correct

OpenStudy (perl):

http://prntscr.com/7oxpmf

OpenStudy (anonymous):

can u answer the other problem please

OpenStudy (decentnabeel):

yuppp i got it @perl

OpenStudy (perl):

I can't answer it. I can only guide you.

OpenStudy (anonymous):

can u guide me then please

OpenStudy (decentnabeel):

ok i know the answer is 29

OpenStudy (decentnabeel):

@perl

OpenStudy (anonymous):

okay i really need to pass geometry so can you guys PLEASE give me the answers please

OpenStudy (anonymous):

and i got 17 quizes i have to do by today and tomorrow :(

OpenStudy (lynfran):

they really didnt give enough info for the rhombus question but i would go with B

OpenStudy (anonymous):

K thank you lyn thanks :)

OpenStudy (anonymous):

heres another

OpenStudy (anonymous):

OpenStudy (lynfran):

Properties of the diagonals of a rhombus: The intersection of the diagonals of a rhombus form 90 degree (right) angles. This means that they are perpendicular. The diagonals of a rhombus bisect each other. To prove that the diagonals of a parallelogram bisect each other, we will use congruent triangles: (alternate interior angles are equal in measure) (alternate interior angles are equal in measure). (since these are angles that a transversal makes with parallel lines AB and DC). remember that the diagonals of any parallelogram bisect each other and the diagonals of a rectangle are congruent. not sure about the square but the other 3 correct

OpenStudy (anonymous):

thnx

OpenStudy (lynfran):

Properties of the diagonals of a rhombus: The intersection of the diagonals of a rhombus form 90 degree (right) angles. This means that they are perpendicular. The diagonals of a rhombus bisect each other. To prove that the diagonals of a parallelogram bisect each other, we will use congruent triangles: (alternate interior angles are equal in measure) (alternate interior angles are equal in measure). (since these are angles that a transversal makes with parallel lines AB and DC). remember that the diagonals of any parallelogram bisect each other and the diagonals of a rectangle are congruent. not sure about the square but the other 3 correct

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