Answer:
x = 10 cm
Explanation:
The volume of a pyramid is
, where V = volume, B = area of base, and h = height.
- We're given the height as 14 cm
- We're given the volume as 280 cubic cm
- We're given one of the dimensions of the rectangle as 6 cm
Step 1: Multiply both sides by 3.
Step 2: Divide both sides by 84.
Step 3: Check if solution is correct.
- 10 * 6 * 14 = 840
- 840/3 = 280
Therefore, x = 10 cm.