document.write( "Question 30573: 1. if a circle is inside a trapazoid(touching its sides) with one base 45 and the other base 125. what is the diameter of the circle?\r
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document.write( "2. you have 2 circles touching each other at one point. one circle is 6ft. the other is 18ft. whats the shortest length of cord that will go around both circles? \n" );
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Algebra.Com's Answer #17253 by venugopalramana(3286)![]() ![]() You can put this solution on YOUR website! REFER FOLLOWING DIAGRAM \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "LET RADIUS OF CIRLE =R=OQ=OT \n" ); document.write( "LET ST=X \n" ); document.write( "TRIANGLES STD AND SQA ARE SIMILAR..SO \n" ); document.write( "(X+2R)/62.5=X/22.5......(X+2R)/X=62.5/22.5.....2R/X=40/22.5......R/X=20/22.5=8/9 \n" ); document.write( "R/8=X/9=K SAY....R=8K....X=9K.... \n" ); document.write( "D IS AN EXTERNAL POINT TO CIRCLE AND HENCE 2 TANGENTS FROM IT ARE EQUAL..THAT IS \n" ); document.write( "DU=DT=22.5 \n" ); document.write( "SIMILARLY \n" ); document.write( "AU=AQ=62.5 \n" ); document.write( "IN RIGHT ANGLE TRIANGLE DAP \n" ); document.write( "DA^2=DP^2+AP^2 \n" ); document.write( "(62.5+22.5)^2=(2R)^2+40^2 \n" ); document.write( "4R^2=85^2-40^2 \n" ); document.write( "R=37.5 \n" ); document.write( "HENCE DIAMETER OF CIRCLE =75.\r \n" ); document.write( "\n" ); document.write( "THE SECOND QUESTION IS NOT CLEAR..CAN YOU PLEASE GIVE A SKETCH... \n" ); document.write( " |