The area of each triangular base is: A = 1/2(b)(h)
A = 1/2(3)(4)
A = 7 112
There are two bases, so total base area is
The lateral area is:
14 ft
A = (12)(3) + 12(5) + 12(4)
A=
C112
The total surface area is

the answer is:

the lateral area is equal to

to find the lateral area of the square pyramid, first we need to find the perimeter of the base, and then, find the lateral area using the following formulas:

where,

s, is the base length

slant height, is the height of a the side of the pyramid

we are given:

now, calculating the perimeter of the base, we have:

then, calculating the lateral area:

hence, we have that the lateral area is equal to

have a nice day!

answer: 1.06 km per sec

step-by-step explanation:

39.6 m=63.72 km

60 min in an hour so 63.72/60=1.06

the graph line crosses the x axis at both -6 and -2, so the answer would be the second one.