Answer:
36√3 + 144
Step-by-step explanation:
Given that,
base of the pyramid is an equilateral triangle with sides = 12
Formula to calculate total surface area of pyramid
<h3>
[Base Area] + 1/2 × Perimeter × [Slant Length]</h3>
Base Area
1/2 (height) (base)
1/2 (√12²-6²)(12)
6(6√3)
36√3
perimeter of base
sum of all sides = 12 + 12+ 12
= 36
slant height = √10²-6²
= 8
put all these values in the formula above
36√3 + 1/2(36)(8)
36√3 + 144
Total area for the pyramid with the equilateral base =
36√3 + 144
Answer:
yes (6,7) is a solution.
Step-by-step explanation:
(6,7) is an ordered pair, see it like (x,y). so
x=6
y=7
substitute the variable with the values.
x+y=13
6+7=13
13=13
this is a true statement.
Shapes with 9 points are considered a nonagon or a enneagon.
Answer:
Mr wentz traveled 40 miles in 40 minutes.
