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Mathematics 7 Online
OpenStudy (alina123):

Problem Solving With Angles

OpenStudy (alina123):

OpenStudy (alina123):

for number 1, i got b

OpenStudy (yanasidlinskiy):

Hello Alina! Do you know what complementary angles are at first?

OpenStudy (alina123):

i think their sum of their angles measure 90 degrees

OpenStudy (yanasidlinskiy):

Yep! correct! Since, a straight line equals 180 degrees....Which one =90?

OpenStudy (alina123):

a right angle

OpenStudy (yanasidlinskiy):

Yes. So look at your choices very carefully. Which one is it?

OpenStudy (alina123):

A

OpenStudy (yanasidlinskiy):

Yes!!! Correct!!!

OpenStudy (alina123):

ok

OpenStudy (yanasidlinskiy):

You want help with #2 also.Correct?

OpenStudy (alina123):

yes

OpenStudy (yanasidlinskiy):

Look carefully @ those angles that they ask to give the measure of. Tell me what kind of triangle is it? How much degrees does it measure?

OpenStudy (alina123):

a reflex that is greater than 180 degrees

OpenStudy (yanasidlinskiy):

No. In other words the angle is obtuse. How much degrees do these angles measure? Remember that a straight line = 180 degrees!

OpenStudy (alina123):

greater than 90 but less than 180

OpenStudy (yanasidlinskiy):

Yes. So this question is common sense. Which answer is it from the choices?

OpenStudy (alina123):

b

OpenStudy (yanasidlinskiy):

Hint: Right triangles= 90 Obtuse = 130 Isosceles = 180

OpenStudy (yanasidlinskiy):

Look at the hints above that I gave you above. If it's obtuse it is??........

OpenStudy (alina123):

d

OpenStudy (yanasidlinskiy):

Yep!!

OpenStudy (alina123):

so it depends on the type of angle they are asking

OpenStudy (yanasidlinskiy):

Yes.

OpenStudy (alina123):

can you help me with the next one

OpenStudy (alina123):

on the next page

jigglypuff314 (jigglypuff314):

which one on the second page?

OpenStudy (yanasidlinskiy):

She wants all of them. @jigglypuff314

OpenStudy (alina123):

the first

OpenStudy (alina123):

and yeh

OpenStudy (alina123):

i could solve the rest but you could help with the first

jigglypuff314 (jigglypuff314):

I gtg eat dinner but for now, http://prntscr.com/3ayogp so 90 + x + 55 + 2x - 49 = 180 solve for x :)

OpenStudy (alina123):

oh ok

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