Posted by **Chris** on Tuesday, September 19, 2006 at 9:12pm.

Consider a triangle ABC. C is a right angle, and side a is opposite angle A, side b is opposite angle B, and side c is the hypotenuse.

The measure of side a= 2, side b= 7, and side c= 7.3

How do you find the angle measure of A and B based on the lengths of the sides?

SinAngleB=7/7.3

so AngleB= arcsin 7/7.3

and AngleA=arcsin 2/7.3

Find f^-1(x). Give the domain of f^-1(x),including any restrictions "inherited" from f.

f(x)= 5x-2

We have to use a caluclator of trig table. We can only find the angles based on the sides for certain values. If you've just started trig you should cover these special values somewhere soon.

We know sin(A)=2/7.3 and cos(A)=7/7.3

A is approx. 15.95deg

We know sin(B)=7/7.3 and cos(B)=2/7.3

B is approx 74.05deg

weeeeeeeeeeeeeeeeeeeee

## Answer this Question

## Related Questions

- Angle question - Quadrilateral JKLM is a rhombus. If mangleLMK = 36, find ...
- math problem - In DABC, what could the 7 shown in the ratio sin A = 7/9 ...
- math - A right triangle has a hypotenuse of length 3.00 m, and one of its angles...
- math - Draw a big diagram You end up with a triangle with: the horizontal side...
- inverse trig functions - evaluate the following expressions: tan(sec^-1(5/3)) ...
- trig - use an inverse trig function to write è as a function of x (There is a ...
- Trig - If I have a triangle with the hypotenuse side as 7, and the opposite side...
- Pre-Algebra - Q: A building lot in a city is shaped as a 30° -60° -90° triangle...
- Geometry - x ________________<20* |<90* y | |<70* (hypotenuse length ...
- Geometry - The hypotenuse of a right triangle is the side opposite the? a. 90 ...

More Related Questions