Posted by **don** on Saturday, August 11, 2012 at 3:44am.

a triangle,side ac is 3/5 of side ab,and is 23.1 m. side ab is 7/9 of side bc.angle b is 1.5 times larger than angle c,and angle a is twice the size of angle c.how many degrees is angle A

- math -
**Steve**, Saturday, August 11, 2012 at 5:46am
ignore all that noise about side lengths. Working with the angles,

b = 3/2 c

a = 2c

a+b+c = 180

2c + 3/2 c + c = 180

9c = 360

c = 40

so,

a = 80

b = 60

you can check on the side lengths of you wish, to make sure they obey the law of sines.

## Answer this Question

## Related Questions

- algebra - angles of a triangle The second angle of a garden triangle is four ...
- trigonometry - using the law of sines, solve the rest of the triangle: side C=14...
- math - Draw a big diagram You end up with a triangle with: the horizontal side...
- Geometry Inscribed Angles Multiple Choice - Find the measure of angle BAC. {...
- Math - Which of the following triangles cannot be solved using the sine law? a) ...
- Geometry - Can you please explain the Side-Side- Side Postulate, The Side-Angle-...
- math problem - In DABC, what could the 7 shown in the ratio sin A = 7/9 ...
- Angle question - Quadrilateral JKLM is a rhombus. If mangleLMK = 36, find ...
- Math - In a triangle ABC, with angles A, B, and C and sides AB, BC, and AC, ...
- Math - In triangle ABC, angle C is a right angle. Find the measure of angle B if...