25 points and brainiest answer for general science !
a line of sight to the top of a tree meets the at an angle of 45°. the distance to the base of the tree was measured and drawn to scale on the student's drawing as shown.
how tall is the tree?
a) - 13.5 cm
b) - 135 cm
c) - 1350 cm
d) - 13500 cm

When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)