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Tentukan: a. Panjang BC

Tentukan:

a. Panjang BC

Jawaban:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell B D end cell equals cell square root of A B squared minus A D squared end root end cell row blank equals cell square root of 26 squared minus 24 squared end root end cell row blank equals cell square root of 676 minus 575 end root end cell row blank equals cell square root of 100 end cell row blank equals cell 10 space c m end cell row blank blank blank row cell D C end cell equals cell square root of A C squared minus A D squared end root end cell row blank equals cell square root of 40 squared minus 24 squared end root end cell row blank equals cell square root of 1600 minus 575 end root end cell row blank equals cell square root of 1024 end cell row blank equals cell 32 space c m end cell row blank blank blank row cell B C end cell equals cell B D plus D C end cell row blank equals cell 10 plus 32 end cell row blank equals cell 42 space c m end cell end table end style

Jadi, panjang BD adalah 42 cm.

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