Help with trig question

[MGRGRM]

In triangle ABC, b=30m and c=20m. If the area of triangle ABC is 81.18m^2, what is the measure(s) of angle A?

 

[firemath]

What have you tried? Where are you stuck? If you tell us what you've tried/have so far, we'll be able to help you better!

 

[MGRGRM]

What have you tried? Where are you stuck? If you tell us what you've tried/have so far, we'll be able to help you better!

To be honest, I don't really know where to start. I've just begun learning these concepts, so some guidance on where to start/strategies to use would be great! Thanks!

 

[firemath]

Is there a picture or diagram to go with this? It will help if we can see this, if so.

 

[Dr.Peterson]

In triangle ABC, b=30m and c=20m. If the area of triangle ABC is 81.18m^2, what is the measure(s) of angle A?

Have you learned the formula for area of a triangle in the SAS case?

Area of Triangles

www.mathsisfun.com

 

[MGRGRM]

Is there a picture or diagram to go with this? It will help if we can see this, if so.

Unfortunately there isn't a diagram

 

[MGRGRM]

Have you learned the formula for area of a triangle in the SAS case?

Area of Triangles

www.mathsisfun.com

I did years ago with geometry, but honestly, I'm not refreshed on it, so I'll look it up

 

[Dr.Peterson]

I did years ago with geometry, but honestly, I'm not refreshed on it, so I'll look it up

Read the link I provided. It's in there.

 

[Steven G]

Draw your own diagram! Label the vertices A, B and C and the given sides. You can at least do that, correct?