Sunday

April 20, 2014

April 20, 2014

Posted by **DW** on Sunday, April 7, 2013 at 12:05pm.

and if it forms two possible triangles solve all unknown angles and sides

Angle A=116 degrees

a=10

b=11

but if you add 81.4 (measure of angle B) plus 116 (measure of angle A) you get 197.368 which is over 180 degrees....

so that would make measure of angle C negative which is why I'm confused

- Pre-Calculus follow up question Reiny -
**Reiny**, Sunday, April 7, 2013 at 12:35pmI think we posted simultaneously.

As a further explanation ....

Let's attempt to draw the triangle.

Draw a base and then construct a side making a 116° with that base.

mark off 11 units, e.g. 11 cm

set your compass at 10 cm , centre at the end of the 11 cm line and draw an arc towards the base.

As you can see, it cannot reach the base.

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