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Pertanyaan

begin mathsize 14px style straight t equals square root of open parentheses OB close parentheses squared minus open parentheses begin inline style 1 half end style AB close parentheses squared end root straight t equals square root of 25 squared minus open parentheses begin inline style 1 half end style 14 close parentheses squared end root straight t equals square root of 25 squared minus 7 squared end root straight t equals square root of... space minus space... end root straight t equals square root of... end root straight t equals.... end style

begin mathsize 14px style straight L equals begin inline style 1 half end style cross times straight n cross times straight a cross times straight t straight L equals begin inline style 1 half end style cross times 9 cross times 14 cross times... straight L equals... space cm squared end style   

Pembahasan Soal:

begin mathsize 14px style straight t equals square root of open parentheses OB close parentheses squared minus open parentheses begin inline style 1 half end style AB close parentheses squared end root straight t equals square root of 25 squared minus open parentheses begin inline style 1 half end style 14 close parentheses squared end root straight t equals square root of 25 squared minus 7 squared end root straight t equals square root of 625 minus 49 end root straight t equals square root of 576 straight t equals 24 space cm end style

begin mathsize 14px style straight L equals begin inline style 1 half end style cross times straight n cross times straight a cross times straight t straight L equals begin inline style 1 half end style cross times 9 cross times 14 cross times 24 straight L equals 1.512 space cm squared end style    

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 10 Juni 2021

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