Find an angle who supplement is three times it’s complement. can you also give it in an equation form?

45°

Step-by-step explanation:

let the angle be x, then

The supplement of x is 180 - x and the complement of x is 90 - x, thus

180 - x = 3(90 - x) ← equation of model, that is

180 - x = 270 - 3x ( add 3x to both sides )

2x + 180 = 270 ( subtract 180 from both sides )

2x = 90 ( divide both sides by 2 )

x = 45

Thus required angle is 45°

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,