The ladder, leaning against the building, forms a right triangle with height "a" being the distance from the ground to the window, and hypotenuse "c" being the length of the ladder.
Because it's a right triangle, we can use trigonometric ratios to find the angles we're missing.
For part A), to solve for the angle between the base of the ladder and the ground, you'll want to use sine, because we know the lengths of the opposite side and the hypotenuse.
Sin(x) = a/c , solve for angle x in degrees or radians.
For part B), finding the angle between the top of the ladder and the building, remember that the sum of the angles in a triangle is 180 degrees, or pi radians, depending on which unit your teacher prefers.
Assuming degrees, we can say that angle y = 180-90-x. You are simply subtracting the two known angles to find the third.
For part C) use the Pythagorean theorem. You're looking for the length of the base, "b". Recall:
a^2 + b^2 = c^2
Plug in the known values, and solve for b.
Rule is 7 can only be divisible by 1 and no other number
The sum is adding 2 or more numbers so the answer would be B since it's adding two numbers
Answer:
<h2>C. 475 inches </h2>
Step-by-step explanation:
Step one:
given
the number of tiles is 100 in total
the dimension of the tiles is 4.75 inches wide
Step two:
Required
We want to find the length that 100 tiles will cover
Hence the length will be 4.75*100
=475inches
<em>Therefore the option C is correct</em>
Answer:
I don't understand
Step-by-step explanation:
