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Mathematics 11 Online
OpenStudy (calculusxy):

In triangle XYZ the measure of angle Y is twice the measure of angle X, and the measure of angle Z us three times the measure of angle X. What is the degree measure of angle Y?

OpenStudy (calculusxy):

@hartnn

hartnn (hartnn):

sum of angles in a triangle = 180 so x+y+z = 180

hartnn (hartnn):

X+Y+Z =180

hartnn (hartnn):

angle Y is twice the measure of angle X ----> Y =2X

hartnn (hartnn):

angle Z us three times the measure of angle X ----> Z = 3X

OpenStudy (calculusxy):

so how can i put that as an equation then? like: 3X + 2X + X = 180?

hartnn (hartnn):

correct! fin X

OpenStudy (calculusxy):

okay so: that will be 6X=180 and x= 30?

OpenStudy (calculusxy):

and then i multiply 30 by 2 to find y right?

hartnn (hartnn):

yes, good :)

OpenStudy (calculusxy):

thanks @hartnn

hartnn (hartnn):

welcome ^_^

OpenStudy (calculusxy):

can u check my answer for other questions?

hartnn (hartnn):

sure

OpenStudy (calculusxy):

please wait.. i have to draw something.

OpenStudy (calculusxy):

|dw:1402184483676:dw| In the figure above, segments AB, BC, CD, and AC are all equal. What is the value of x? * I got 120 degrees.

OpenStudy (calculusxy):

|dw:1402184558995:dw|

hartnn (hartnn):

x =120 is correct

OpenStudy (calculusxy):

THANKS. ANOTHER ONE..

OpenStudy (calculusxy):

|dw:1402184620070:dw| If the measure of angle ABC is 145°, what is the value of x?

hartnn (hartnn):

you got 52 ?

OpenStudy (calculusxy):

I said 52°? so yes

hartnn (hartnn):

correct :D

OpenStudy (calculusxy):

If the perimeter of a square is 32 meters, what is the area of the square, in square meters? * I said it was 64㎡

hartnn (hartnn):

4s =32 s=8 A =s^2 =64 correct!

OpenStudy (calculusxy):

Thanks and the last question was the one that I posted originally. Thanks once again @hartnn . I will need way more help in the future... ;)

hartnn (hartnn):

welcome ^_^ always happy to help :)

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