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loga230207
2 năm trước
Cho tam giác ABC đồng dạng với tam giác MNP với tỉ số đồng dạng k = 2/3 . Kẻ đường cao AH của tam giác ABC và đường cao MK của tam giác MNP . a) Chứng minh: tam giác ABH đồng dạng với tam giác MNK . b) Biết diện tích tam giác ABC là 56 cm^2 . Tính diện tích tam giác MNP
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