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Gnoma [55]
3 years ago
8

Find the surface area of the equilateral triangular pyramid A.720 cm B.912 cm C.1104 cm D. 1824 cm

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
7 0

Answer:

What does the pyramid look like

Step-by-step explanation:

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The sum of the measures of seven angles of an octagon is 1000 degrees fine the measure of the eighth angle
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A rectangle has coordinates A(-4, 3), B(0, 0), C(6, 8), D(2, 11). What is the area of the rectangle?
asambeis [7]

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That's the absolute value of half the sum of the cross products of the sides.  We form the table of the vertices. We include the first vertex at the end, then calculate the cross product of the side, (a,b) then (c,d) gives cross product ad-bc.

         cross product

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0 0   0

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