Answer:
SA=131.94689
Step-by-step explanation:
SA=2πrh+2πr^2
SA=2*3.14*3*4+2*3.14*3^2
SA=131.94689
Answer:
we say that they are inversely propotional
Step-by-step explanation:
Answer:
13.4feet
Step-by-step explanation:
The set up forms a right triangle.
Given
Height of the staircase h = 12 feet
Base of the stairs b = 6feet
Required
Length of the ramp l
Using the pythagoras theorem
l² = h² + b²
l² = 12²+6²
l² = 144 + 36
l² = 180
l = √180
l = 13.42 feet
Hence the length of the ramp to the nearest tenth is 13.4feet