Im pretty sure all u need to do is multiply and you got your answer
volume of a pyramid = length x width x height
3
because a square has the same length and width, length = width = side
volume of a pyramid = side x side x height
3
volume of a pyramid = side² x height
3
We know the volume of the pyramid is 120 cubic meters, and the height is 10 meters, so:
120 = side² x 10
3
multiply both sides by 3
360 = side² x 10
divide both sides by 10
36 = side²
square root both sides
6 = side
A side length of the base is 6 meters.
Answer:
<u>357.5 cm²</u>
Step-by-step explanation:
Area of the figure :
- Area (rectangle 1) + Area (rectangle 2) + Area (triangle 1) + Area (triangle 2)
- (7 x 8) + (9 x 20) + (1/2 x 10 x 10) + (1/2 x 11 x 13)
- 56 + 180 + 50 + 71.5
- 230 + 56 + 71.5
- 286 + 71.5
- <u>357.5 cm²</u>
<span>x - 8y = 46.5
x - 13y = 39.0
subtract the equations to solve for y
5 y = 46.5 - 39
y = 1.5 so he saves 1.5 seconds per step he runs.
sub in y to solve for x
x - 8 (1.5) = 46.5
x - 12 = 46.5
x = 58.5 seconds </span>
