a man in a boat rowing from light house whose height is 200 meter. he takes 2minutes to change the angle of elevation top of light house from 60⁰ and 45⁰ find speed of boat​

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7