Answer:
b
Step-by-step explanation:
hhucudydydidydtvybi
Answer:
the answer is 67.980
Step-by-step explanation:
The new surface area will be 9 times the old surface area.
So A or #1
Answer:
Measure the distance of treads (Exclude the width of nosing). If all the treads are uniform in size, measure one tread otherwise you will need to measure all treads. ...
Measure the height of risers. ...
Divide the riser height by the tread width and then calculate the inverse tangent.
Non of the answers are right because the answer should be equivalent to -4
