Picture?
Go to desmos graphing calculator and plug it in
If it is 500 metres underwater when measured from a 40 degree angle, you can use trigonometry. 500 metres is the hypotenuse, and the angle from the submarine to the surface of water is 90. It is a right-angled triangle.
Using sin, where S = O/H, we have no opposite, only angles and a hypotenuse. So, sin 30 (the angle) = O/500. By multiplying each side by 500 to cancel O out, you get sin 30 x 500 = O.
So, The depth (from a 90 degree angle to the surface) = 294 metres.
Answer:
<u>*I need more detail* but if I guessed than the question is asking if the are equal triangles.</u>
Δabc=Δnlm
Step-by-step explanation:
Draw out both triangles and label them as described in the question. If one angle of the triangles are 80° and 50° than the other angle has to be measured as 50° because all the angles have to add up to 180°. And both triangles are said to have angles 80° and 50°. The length of ac and ab are equivalent because it is an isosceles triangle and same goes for Δnlm.