The length of the shadow of a building is 90 meters, as shown below:
the shadow of a building is 90 meters long. the acute angle that the shadow makes with the line joining the tip of the building to the end of the shadow measures 30 degrees.
what is the height of the building?
30 m
45 m
51.96 m
78.94 m

i hope this is what you were looking for.

see attached graph

step-by-step explanation:

hihi so drawing these 2 triangles is fairly simple. all that's left is finding the height of each one. luckily, we have a side length and an angle, so there is a trig function we can use to solve for the height. the easiest one to use would be tangent, since we have 2/3 things needed to find and the third needed is what we are solving for. tan(73°) * 30 ~= 98.13 and tan(73°) * 35 ~= 114.45

they share a side

step-by-step explanation:

this is the fundamental definition of adjacent angles

they:

1) share a vertex

2) share a side.