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Mathematics 16 Online
OpenStudy (anonymous):

hi ppeople medal given

OpenStudy (anonymous):

?

OpenStudy (anonymous):

OpenStudy (anonymous):

I can not read the numbers, the picture is of poor quality

OpenStudy (anonymous):

ok give me a sec

OpenStudy (anonymous):

OpenStudy (anonymous):

OpenStudy (anonymous):

The general formula for the total surface area of a regular pyramid is TSA = 1/2 pl + B where p represents the perimeter of the base and l the slant height and B the area of the base.

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

dnt understand can u show me how two to do it

OpenStudy (anonymous):

Ok, let's see. The first one, TSA (what you want to find) = 1/2 * (4 * 4 (for perimeter)) * 6.5 + 4 * 4 TSA = 8 * 6.5 + 16 TSA = 68

OpenStudy (anonymous):

where does the 8 come fromm @D35TR0Y3R

OpenStudy (anonymous):

pyramid area =[Base Area] + 1/2 × Perimeter × [Slant Length]

OpenStudy (anonymous):

this might help u out http://www.mathsisfun.com/geometry/pyramids.html

OpenStudy (anonymous):

show me plz

OpenStudy (anonymous):

in example

OpenStudy (anonymous):

first base area is the are of the Square

OpenStudy (anonymous):

yea

OpenStudy (anonymous):

it is 4 *4 = 16 for the first example

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

slant length is 6.5 cm

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

\[16+\frac{ 1 }{2 }\times4\times6.5=29\]

OpenStudy (anonymous):

that the answer

OpenStudy (anonymous):

for the first question yes is it correct ?

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

and soo one just follow the formula pyramid area =[Base Area] + 1/2 × Perimeter × [Slant Length]

OpenStudy (anonymous):

on *

OpenStudy (anonymous):

OpenStudy (anonymous):

like tht

OpenStudy (anonymous):

ok area of base is 4 * 4

OpenStudy (anonymous):

@sabrinacool Sorry, the 8 was just part way through solving, the 1/2 * (4 * 4)

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