Answer:
7 hr * 12 days = 84 hours
10*84 = 840 man-hrs to build the wall
----
14 men * 8 hr = 112 man-hrs/day
840/112 = 7.5 days
Step-by-step explanation:
Answer:
<u>1109.8 square feet</u>
Step-by-step explanation:
In this case, assume the leash to be the radius of the circular yard.
<u>Area</u>
- πr²
- 3.14 x (18.8)²
- 3.14 x 353.44
- <u>1109.8 square feet</u>
Answer:
<h2>L.A. = 384 cm²</h2><h2>S.A. = 640 cm²</h2>
Step-by-step explanation:
Lateral Area:
We have four congruent triangles with base b = 16cm and height h = 12cm.
The formula of an area of a traingle:

Substitute:


Surface Area:

In the base we have the square with side s = 16cm. The formula of an area of a square:

Substitute:

