document.write( "Question 1198365: V-QRST is a rectangular pyramid with edge VS, base QRST. QR = 3/8 m, RS = 5/8 m, and VS = 2/3 m. How many square centimeters are there on its lateral surface? Round off the answer to the nearest integer. \n" ); document.write( "
Algebra.Com's Answer #832046 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "Lots of tedious calculations, with numbers that are not \"nice\" -- I'll leave them to you.

\n" ); document.write( "Let P be the center of the rectangular base.
\n" ); document.write( "Let X be the midpoint of RS and Y be the midpoint of ST.

\n" ); document.write( "The lateral surface of the pyramid consists of triangles RSV and QTV which are congruent, and triangles QRV and STV which are congruent.

\n" ); document.write( "(1) Use SX and SY to find SP
\n" ); document.write( "(2) Use SP and VS to find the height of the pyramid, VP
\n" ); document.write( "(3) Use PV and PX to find VX, the altitude of triangle RSV
\n" ); document.write( "(4) Use PV and PY to find VY, the altitude of triangle STV

\n" ); document.write( "That gives you all the numbers you need to find the lateral surface area.

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