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ગણિત ધોરણ 9 દ્વિતીય સત્ર

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ગણિત

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bold square bold space bold ABCDમાં bold angle bold space bold A bold comma bold space bold angle bold space bold B bold comma bold space bold angle bold space bold C bold space bold અન ે bold space bold angle bold space bold D નાં માપ 2 : 5 : 6 : 7ના પ્રમાણમાં હોય, તો bold square bold space bold ABCDના દરેક ખૂણાનું માપ શોધો.


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bold square bold space bold ABCD માં bold angle bold space bold A bold comma bold space bold angle bold space bold B bold comma bold space bold angle bold space bold C bold space bold અન ે bold space bold angle bold space bold Dનાં માપ 10 : 7 : 12 : 7ના પ્રમાણમાં હોય, તો bold square bold space bold ABCDના દરેક ખૂણાનું માપ શોધો.


bold square bold space bold ABCDમ ાં bold comma bold space bold m bold space bold angle bold space bold A bold space bold colon bold space bold m bold space bold angle bold space bold B bold space bold colon bold space bold m bold space bold angle bold space bold C bold space bold colon bold space bold m bold space bold angle bold space bold D bold space bold colon bold space bold 10 bold space bold colon bold space bold 7 bold space bold colon bold space bold 12 bold space bold colon bold space bold 7 bold space

bold જ ો bold comma bold space bold m bold space bold angle bold space bold A bold space bold equals bold space bold 10 bold x bold comma bold space bold ત ો bold space bold m bold space bold angle bold space bold B bold space bold equals bold space bold 7 bold x bold comma bold space bold m bold space bold angle bold space bold C bold space bold equals bold space bold 12 bold x bold space bold અન ે bold space bold m bold space bold angle bold space bold D bold space bold equals bold space bold 7 bold x bold.

bold હવ ે bold comma bold space bold square bold space bold ABCDમ ાં bold comma bold space bold m bold space bold angle bold space bold A bold space bold plus bold space bold m bold space bold angle bold space bold B bold space bold plus bold space bold m bold space bold angle bold space bold C bold space bold plus bold space bold m bold space bold angle bold space bold D bold space bold equals bold space bold 360

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bold therefore bold space bold 36 bold x bold space bold equals bold space bold 360

bold therefore bold space bold x bold space bold equals bold space bold 360 over bold 36 bold space bold equals bold space bold 10

bold હવ ે bold comma bold space bold m bold space bold angle bold space bold A bold space bold equals bold space bold 10 bold x bold space bold equals bold space bold 10 bold space bold cross times bold space bold 10 bold space bold equals bold space bold 100

bold m bold space bold angle bold space bold B bold space bold equals bold space bold 7 bold x bold space bold equals bold space bold 7 bold space bold cross times bold space bold 10 bold space bold equals bold space bold 70

bold m bold space bold angle bold space bold C bold space bold equals bold space bold 12 bold x bold space bold equals bold space bold 12 bold space bold cross times bold space bold 10 bold space bold equals bold space bold 120

bold m bold space bold angle bold space bold D bold space bold equals bold space bold 7 bold x bold space bold equals bold space bold 7 bold space bold cross times bold space bold 10 bold space bold equals bold space bold 70

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bold square bold space bold PQRS bold space bold equals bold space bold square bold space bold PSQR છે ? કારણ આપો.

bold square bold space bold PQRSમાં જો bold m bold space bold angle bold space bold P bold space bold equals bold space bold 2 bold x bold comma bold space bold m bold space bold angle bold space bold Q bold space bold equals bold space bold 3 bold x bold comma bold space bold m bold space bold angle bold space bold R bold space bold equals bold space bold 4 bold x bold space bold અન ે bold comma bold space bold m bold space bold angle bold space bold S bold space bold equals bold space bold 6 bold x bold comma bold space bold ત ો bold space bold square bold space bold PQRS ના દરેક ખૂણાનુ માપ શોધો.

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