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Hitunglah perbandingan luas segitiga ABC dan CAD !

Pertanyaan

Hitunglah perbandingan luas segitiga ABC dan CAD !undefined

Pembahasan Soal:

begin mathsize 14px style A C equals square root of A B squared plus B C squared end root A C equals square root of 144 plus 81 end root A C equals square root of 225 A C equals 15  A D equals square root of C D squared minus A C squared end root A D equals square root of 25 squared minus 15 squared end root A D equals square root of 625 minus 225 end root A D equals square root of 400 A D equals 20  L subscript increment A B C end subscript equals 1 half cross times A B cross times B C L subscript increment A B C end subscript equals 1 half cross times 12 space c m cross times 9 space c m L subscript increment A B C end subscript equals 54 space c m squared  L subscript increment C A D end subscript equals 1 half cross times A D cross times A C L subscript increment C A D end subscript equals 1 half cross times 20 space c m cross times 15 space c m L subscript increment C A D end subscript equals 150 space c m squared end style 

Jadi, perbandingannya adalah begin mathsize 14px style 54 space colon space 150 space equals 9 space colon space 25 end style .

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 02 Maret 2021

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