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Mathematics 16 Online
OpenStudy (anonymous):

The measure of angle R is 152° and the measure of angle S is 65°, find the measure of angle T.

OpenStudy (anonymous):

Might need a picture for this one. Theway this question is stated Angle t can have any value.

OpenStudy (anonymous):

OpenStudy (anonymous):

Ok so if you draw the line segment RT what can you say about the two triangles that are made by drawing line segment RT?

OpenStudy (anonymous):

would they be congruent?

OpenStudy (anonymous):

Yes since by SSS! So what can you say about Angle U and angle S?

OpenStudy (anonymous):

they are the same

OpenStudy (anonymous):

Yep and what do you know about the sum of the measures of the interior angles of all quadrilaterals?

OpenStudy (anonymous):

equal?

OpenStudy (anonymous):

Nope...They add up to a certain number of degrees. What is that number?

OpenStudy (anonymous):

540

OpenStudy (anonymous):

No. Do you know the sum of the angles of a triangle?

OpenStudy (anonymous):

180

OpenStudy (anonymous):

Right and how many triangles make up the figure in your problem?

OpenStudy (anonymous):

2

OpenStudy (anonymous):

Yep so how many degrees is the sum of the angles in a quadrilateral?

OpenStudy (anonymous):

360

OpenStudy (anonymous):

You got it. So now since you know the size of three of the four angles and what the four angles should add up to. You should be all set.

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