For safety reasons, all risers in a flight of stairs should be: ...

[maychende]

For safety reasons, all risers in a flight of stairs should be:
 
   Four inches high
   The same height
   Ten inches high

Question 2

Almost all early furniture is based upon which two simple forms?
 
  A. The platform and the cylinder.
   B. The platform and the cone.
   C. The cylinder and the box.
   D. The platform and the box.

[smrerig]

Answer to Question 1

the same height

Answer to Question 2

D

[maychende]

Excellent

[at]

Thanks for the timely response, appreciate it