Question

dr black is standing 15 feet from a streetlampand. the lamp is making his shadow 8 feet long. he estimates that the angle of elevation from the tip of his shadow to the top of the streetlamp is 50degrees. to the nearest foot, the streetlamp is about ??????? help and show me how to do it plz thanx

Answer 1

try to draw a pic. a line for the lamp, the left side of a triangle, then the 15` away, bottom of the triangle, your hypotenuse is the 8` and the bottom angle btwn th e15 and 8 is the 50 degrees elevation

Answer 2

got it?

Answer 3

thank you so much

Answer 4

A 60-foot tree casts a shadow 85 feet long. The sine of the angle of elevation of the top of the tree to the sun is approximately _____. can someone help me with this one too

Answer 5

yep the angle of 15` is 90 remember then it should be able to set an equation to get the other side(height of lamp)

Answer 6

I will try give me a feew

Answer 7

ok thanx alot i appreciate :)

Answer 8

yep np

Answer 9

the sine problem, is it multi choice?

Answer 10

the angle you need is the angle of 60`minus 180.