The answer is 1 because when you subtract 972 from 932 you get 40. Then u add 812 and 40 to see if u get 852 and u do, so add 40 to 852 and you get 892.
So first find the distance from the bottom of the lumber to the wood
40^2= 36^2+X^2
X=304^1/2. Or the sqaure root of 304
The you use the sin equation
Sin90*\40= sin(unknown angle)/304^1/2
Sinx(x) = ((304^1/2)xsin(90))/40
X=arcsin((304^1/2)xsin(90))/40
Das test your knowlege of this exponential law
so
C is the correct answer
-the shower block as an area of 144m^2-the length of the shower block is 24m
Area= length x width
Plug in the values you know.
144= length*24
Divide both sides by 24.
length=6
The width of the shower block is 6m.
I hope this helps!
Two advanced for my simple mindedness
