Geometry help

Question

Geometry help

woolyfrog · Answer

@dude

woolyfrog · Answer

A triangular section of a lawn will be converted to river rock instead of grass. Maurice insists that the only way to find a missing side length is to use the Law of Cosines. Johanna exclaims that only the Law of Sines will be useful. Describe a scenario where Maurice is correct, a scenario where Johanna is correct, and a scenario where both laws are able to be used. Use complete sentences and example measurements when necessary.

Vocaloid · Answer

to help you get started: law of cosines, to solve for a missing side, requires the two other sides and the angle in between them|dw:1526599820412:dw|

Vocaloid · Answer

|dw:1526600541358:dw|

Vocaloid · Answer

uh I'm still drawing a blank on the third case just a moment..

Vocaloid · Answer

@Angle actually would you mind taking a look at this when you get the chance? trying to think of a situation where you could either use law of cosines or sines to solve for a missing side length on a triangle

Angle · Answer

https://www.nctm.org/Classroom-Resources/Lessons/Law-of-Cosines/ "Law of Sines: Two angles and a side (AAS or ASA); two sides and a non-included angle (SSA). Law of Cosines: Three sides (SSS); two sides and an included angle (SAS)."