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Mathematics 16 Online
OpenStudy (anonymous):

Find the value of x. The diagram is not to scale.

OpenStudy (anonymous):

OpenStudy (anonymous):

A. x=60 B. x= 21 C. x=15 D. None of these

OpenStudy (anonymous):

ok now this is an isos triangle so the bas angles are = right?

OpenStudy (anonymous):

Yes

OpenStudy (anonymous):

so that makes angle STR=5x-30

OpenStudy (anonymous):

and angle RTU=180 since it is a line understood till now?

OpenStudy (anonymous):

I'm pretty sure it's D bc 180/3 is 60 and 60-30 is 30, then 30 /5 is 6

OpenStudy (anonymous):

wrong since youve got 5x-30+5x=180 so 10x=210 so x=21

OpenStudy (anonymous):

it is B

OpenStudy (anonymous):

did you understood what i did?

OpenStudy (anonymous):

Thank you :)

OpenStudy (anonymous):

Yes I did!

OpenStudy (anonymous):

your welcome

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