document.write( "Question 29810: i am currentley revising for my gcse and i am stuck on algebra. the school have given me a a word dotted paper and told me to work out the area by drawing the shapes.There is a word on the paper i do not understand the word is trapezium. what does that word mean can you help me please thank you. \n" ); document.write( "
Algebra.Com's Answer #16543 by venugopalramana(3286)\"\" \"About 
You can put this solution on YOUR website!
i am currentley revising for my gcse and i am stuck on algebra. the school have given me a a word dotted paper and told me to work out the area by drawing the shapes.There is a word on the paper i do not understand the word is trapezium. what does that word mean can you help me please thank you.
\n" ); document.write( "SEE THE FOLLOWING EXAMPLES TO KNOW THE TRAPEZIUM..IT IS A QUADRILATERAL WITH 2 OPPOSITE SIDES PARALLEL
\n" ); document.write( "IF YOU WANT MORE OR IN DOUBT COME BACK. \r
\n" ); document.write( "\n" ); document.write( "see the following example and try\r
\n" ); document.write( "\n" ); document.write( "SEE THE TRAPEZOID ....ABCD below
\n" ); document.write( "AREA OF TRAPEZOID IS GIVEN BY
\n" ); document.write( "AREA=(1/2)*ALTITUDE*(SUM OF PARALLEL SIDES)=(1/2)*DP*(AB+CD)
\n" ); document.write( "WHERE ALTITUDE IS THE PERPENDICULAR DISTANCE BETWEEN PARALLEL SIDES =DP
\n" ); document.write( "PARALLEL SIDES ARE AB AND CD.
\n" ); document.write( "WE HAVE AB=40
\n" ); document.write( "BC=AD=20
\n" ); document.write( "ANGLE DAP=63
\n" ); document.write( "DAP IS A RIGHT ANGLED TRIANGLE...DP/DA=SIN(63)
\n" ); document.write( "DP=DA*SIN(63)=20*0.89=17.8
\n" ); document.write( "SO ALTITUDE=17.8
\n" ); document.write( "AP/DA=COS(63)
\n" ); document.write( "AP=DA*COS(63)=20*0.4545=9.1
\n" ); document.write( "SO CD =AB-2*AP SINCE TRAPEZOID IS ISOCELLES..
\n" ); document.write( "CD=40-2*9.1=21.8
\n" ); document.write( "AREA=(1/2)17.8(40+21.8)=550 SQUARE UNITS.
\n" ); document.write( "
\n" ); document.write( "
\n" );