Question

Please Help!
Find the total area for the regular pyramid.
T. A. =
(xx+x sq.rt. xx)

https://flyingeaglesnv.sooschools.com/media/g_geo_2014/8/groupi74.gif

Answer 1

opp. the answer should be, (x + x sq.rt. xx)

Answer 2

hmm what's the area of the base, or squarish bottom?

Answer 3

notice the picture, notice the bottom, is just a square

Answer 4

is like a triangle-ish base... so this base has a 4, 4, and 4. i think.

Answer 5

Total Area= Lateral Area + Base Area

Base Area = Length*Width
Lateral Area = 1/2 (Perimeter of Base)(Slant Length)

B.A. 2*2 =4

What is the Slant Length-
Find this by Pythagorean Formula:
a^2 + b^2 = c^2
c (or S.L.) = sqrt(1+9)
S.L = sqrt10

L.A. = 1/2(8)(sqrt10)

T.A. = 1/2(8)(sqrt10) + 4