A ship is on the surface of the water, and its radar detects a submarine at a horizontal distance of 238m away underwater, at an angle of depression of 25 degrees. Find the depth of the submarine.

110.98 m

Step-by-step explanation:

you have a right triangle and you know the adjacent side to the 25 degree angle and are looking for the opposite side of the angle

tan of an angle = opposite side/adjacent side

Let d = depth of submarine

So, tan 25 = d/238

     238 tan 25 = d

d =  110.98 m

Note:  You must memorize the definitions of all the trig functions and then these types of problems will be easy.  OK?

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3