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Mathematics 13 Online
OpenStudy (anonymous):

Medals to best answer

OpenStudy (anonymous):

Figure JKLM shows the top surface of a box shaped as a rectangle with segment JL as its diagonal. The measure of angle KJL is (x + 7) degrees and the measure of angle MJL is (2x – 1) degrees. Which property of rectangles is used to write the equation (x + 7) + (2x – 1) = 90 and solve for x? The adjacent angles of a rectangle are supplementary. The diagonal of a rectangle divides the angle at the vertex into two complementary angles. The opposite sides of a rectangle are parallel. The opposite angles of a rectangle are equal.

OpenStudy (mathstudent55):

I can't see the figure. I get an error. Can you draw it?

OpenStudy (anonymous):

OpenStudy (anonymous):

the answer is your name is crazy

OpenStudy (mathmate):

What do you suggest?

OpenStudy (mathstudent55):

When you write (x + 7) + (2x – 1) = 90, you are stating the sum of the measures of those angles is 90, right?

OpenStudy (anonymous):

what would the answer be? yoou guys? I have the same questions

OpenStudy (mathmate):

Hint: find out the meaning of complementary angles.

OpenStudy (mathstudent55):

@ghkiehrgikrhgk Are you there?

OpenStudy (anonymous):

B?

OpenStudy (mathmate):

What does the term complementary angles mean?

OpenStudy (anonymous):

Either of two angles whose sum is 90°.

OpenStudy (anonymous):

the awnswer is ryhyjbnkuhi has a crazy name as well

OpenStudy (mathmate):

complementary angles means that the angles add up to 90 degrees. Does that confirm or eliminate your choice? @ryhyjbnkuhi

OpenStudy (anonymous):

i think it means it is B? do you think I am correct

OpenStudy (mathmate):

Yes, I agree with your choice.

OpenStudy (anonymous):

I am gonna ask a few more can u help I will tag u

OpenStudy (mathmate):

I would be glad to, but I have to be offline soon.

OpenStudy (mathstudent55):

Answer is B. Two angles whose measures add up to 90 are complementary.

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