Answer:

Step-by-step explanation:
The given figure shows a triangular pyramid having 16 units as height. The base of pyramid is triangle.
The area of a triangular pyramid is given by :

Where
b is the area of base

So, the required area is equal to
.
Answer:
25%
Step-by-step explanation:
.25(3,600)=900
3,600+900=4,500
Answer:
1/0.4=10/4=5/2...............
(29 m/side)*(2 sides/double)*(3 doubles) = 174 m = 0.174 km