Saturday

April 18, 2015

April 18, 2015

Posted by **Tommy** on Saturday, March 3, 2012 at 4:25pm.

Side RA=4

Side AB=4.8

Side RB=7.1

How do I find Angle RAB?

Thanks!

- Math -
**bobpursley**, Saturday, March 3, 2012 at 4:29pmLaw of Cosines

C^2=a^2+b^2-2abCosC

so label your sides a, b, c

you want angle c to equal RAB

so RB=C

RA=a

AB=b

**Answer this Question**

**Related Questions**

Geomentry - What is the converse of the theorem statement: If a line parallel to...

Math help! - Which of the triangles described in the table is a right triangle. ...

Pre-Calc - Consider a triangle ABC. C is a right angle, and side a is opposite ...

Geometry - One side of a triangle is x inches longer than another side. The ray ...

Geometry - Can you please explain the Side-Side- Side Postulate, The Side-Angle-...

Cosine Law - Find all missing sides/angles. Round each answer to the nearest ...

Algebra - The perimeter of an equilateral triangle is 7 in. more than the ...

math (algerba 1) - Right Angle Triangle: side A ? side B 3 square root side C 2m...

Geometry - One side of a triangle is x inches longer than another side. The ray...

Geometry - One side of a triangle is x inches longer than another side. The ray...