The base area of a triangular pyramid is28 in and the height is 12 in. What is the volume of this pyramid

where is the triangle?

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

answer is d.

l.a. = 791.7 ft2;  

s.a. = 1,244.1 ft2

hope you got it : d

so 75 people in the room, 3 more enter so

75 + 3 = 78 so then 2 leave so

75 + 3 = 78 - 2 = 76

then since im not sure what beat up means but im guessing they stayed because it doesnt sya they left so

hope i have a great day!