tolong dibantu:,)))serta penjelasannya:],..Makasih sebelumnya Yang udh jawab
[tex]diagonal \: 2 \\ \sqrt{ {ab}^{2} - ( \frac{1}{2} {ac})^{2} } + \sqrt{ {ad}^{2} - ( \frac{1}{2} {ac})^{2} } \\ \sqrt{ { {15}^{2} - ( \frac{1}{2} .24)}^{2} } - \sqrt{ {20}^{2} - ( \frac{1}{2}. {24})^{2} } \\ \sqrt{225 - 144} + \sqrt{400 - 144} \\ \sqrt{81} + \sqrt{256} \\ 9 + 16 \\ 25 \: cm \\ \\ luas \: layang - layang \\ \frac{1}{2} \times 1 \times d2 \\ \frac{1}{2} \times 24 \: cm \times 25 \: cm \\ 300 \: {cm}^{2} [/tex]
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