The entrance to a business is 4 feet above the ground. The business 1
w
is required to build an accessibility ramp with a slope of How far
12
from the entrance will the ramp need to begin?

11.3 feet

Step-by-step explanation:

The question is not structured properly but assuming the ramp should have a slope of 12 feet then this can be solved with the Pythagorean theorem.

a² + b² = c²

a is the height above the ground

b is the distance of the ramp's beginning from the entrance

c is the slope

4² + b² = 12²

16 + b² = 144

b² = 144 - 16

b² = 128

b = √128

b = 11.3 feet

60

step-by-step explanation:

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584