Jose's math grade is the mean of his three exams. his grades of the first two exams were 82 and 93. what grade must he earn on his third exam to have of at least 90 for the class?

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!

four boxes of pizza

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