Please Help!?

Question

The foot of a rescue ladder is placed 10 m away from the base of a burning building. the ladder is then extended to 35 m so that it can reach the third floor. what angle does the ladder make with the ground?

Answer 1

35 degrees

Answer 2

First of all, you can't convert height into an angle measurement. Secondly, you don't need to know the height of the building at all to find the measure of the angle.

This problem is a simple trig problem. You are given the length of one leg and the hypotenuse of a right triangle. To find the measure of your angle (A) you can use Cos(A)=adjacent/hypotenuse. Cos(A) = 10/35. Solve for A, you will have your answer, which is aprox 73.4 degrees.

Answer 3

Use the a^2+b^2=c^2 formula to figure out the height of the building. Once you get the height, then convert that into the angle measurement.

Answer 4

In other words you have A^2 , 10m, and c^2, 35m. So, 10^2+b^2=35^2. -> 100+b=1225. Solve. And then find the square root of that.

Answer 5

a squared plus b squared equals c squared.
100m plus 1225m equals 1325m
The square root of 1325 is 36.4, so the ladder is 36.4m away from the building, Then, you have the right angle of 90 degrees, and I am lucky I got that far. Good luck!

Answer 6

should you really be worried about the angle of the ladder when there are probably people burning alive in the building...stop thinking about unimportant crap and help save them already!!!!!!!!!!!!!!!!

Answer 7

don't have a calculater, but i think it's (tan35/10) use a calculater.

Answer 8

see pixy.