A pyramid is regular if its base is a regular polygon, that is a polygon with equal sides and angle measures.
(and the lateral edges of the pyramid are also equal to each other)
Thus a regular rectangular pyramid is a regular pyramid with a square base, of side length say
x.
The lateral faces are equilateral triangles of side length
x.
The lateral surface area is 72 cm^2, thus the area of one face is 72/4=36/2=18 cm^2.
now we need to find
x. Consider the picture attached, showing one lateral face of the pyramid.
by the Pythagorean theorem:

thus,

thus:

(cm^2)
but

is exactly the base area, since the base is a square of sidelength =
x cm.
So, the total surface area = base area + lateral area =

cm^2
Answer:

cm^2
Answer:
Step-by-step explanation:
Please share the possible answer choices next time.
c = 10 + 3t is a linear function with y-intercept (0, 10) and slope 3.
Plot (0, 10). Starting there, move your pencil point 1 unit to the right and 3 units up. Plot this new point (1, 13). Draw a line connecting
(0, 10) and (1, 13).
Answer:
Step-by-step explanation: