Góc vuông. Góc không vuông
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</div><p></p> <p>• Làm quen với góc:</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b48-h2-1664694340.jpg.webp" width="584" height="240" alt="hinh-anh-goc-vuong-goc-khong-vuong-1132-1" title="hinh-anh-goc-vuong-goc-khong-vuong-1132-1" loading="lazy"></p> <p>• Góc vuông, góc không vuông:</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b48-h3-1664694368.jpg.webp" width="633" height="159" alt="hinh-anh-goc-vuong-goc-khong-vuong-1132-2" title="hinh-anh-goc-vuong-goc-khong-vuong-1132-2" loading="lazy"></p> <p>• Ê ke:&nbsp;</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b48-h4-1664694398.jpg.webp" width="385" height="214" alt="hinh-anh-goc-vuong-goc-khong-vuong-1132-3" title="hinh-anh-goc-vuong-goc-khong-vuong-1132-3" loading="lazy"></p> <p>• Đọc tên góc:</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b48-h5-1664694426.jpg.webp" width="282" height="198" alt="hinh-anh-goc-vuong-goc-khong-vuong-1132-4" title="hinh-anh-goc-vuong-goc-khong-vuong-1132-4" loading="lazy"></p> <h3 id="1-dugraveng-ecirc-kecirc-de-nhan-biet-goacutec-nagraveo-lagrave-goacutec-vuocircng-goacutec-nagraveo-lagrave-goacutec-khocircng-vuocircng-trong-moi-higravenh-duoi-dacircy">1. Dùng ê kê để nhận biết góc nào là góc vuông, góc nào là góc không vuông trong mỗi hình dưới đây:</h3> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b48-h6-1664694525.jpg.webp" width="651" height="197" alt="hinh-anh-goc-vuong-goc-khong-vuong-1132-5" title="hinh-anh-goc-vuong-goc-khong-vuong-1132-5" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div><p></p> <h3 id="2">2.</h3> <p>a) Nêu tên đỉnh và cạnh của mỗi góc trong các hình dưới đây:</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b48-h7-1664694594.jpg.webp" width="650" height="197" alt="hinh-anh-goc-vuong-goc-khong-vuong-1132-6" title="hinh-anh-goc-vuong-goc-khong-vuong-1132-6" loading="lazy"></p> <p>b) Dùng ê ke để nhận biết góc nào là góc vuông, góc nào là góc không vuông trong các hình trên.</p> <h3 id="3-hatildey-chi-ra-hai-higravenh-anh-cua-goacutec-trong-moi-higravenh-ve-duoi-dacircy">3. Hãy chỉ ra hai hình ảnh của góc trong mỗi hình vẽ dưới đây:</h3> <p style="text-align: center;"><img src="/uploads/tinymce/b48-h8-1664694714.jpg.webp" width="262" height="205" alt="hinh-anh-goc-vuong-goc-khong-vuong-1132-7" title="hinh-anh-goc-vuong-goc-khong-vuong-1132-7" loading="lazy"></p> <p style="text-align: center;"><img src="/uploads/tinymce/b48-h9-1664694728.jpg.webp" width="229" height="290" alt="hinh-anh-goc-vuong-goc-khong-vuong-1132-8" title="hinh-anh-goc-vuong-goc-khong-vuong-1132-8" loading="lazy"></p> <p style="text-align: center;"><img src="/uploads/tinymce/b48-h10-1664694756.jpg.webp" width="322" height="289" alt="hinh-anh-goc-vuong-goc-khong-vuong-1132-9" title="hinh-anh-goc-vuong-goc-khong-vuong-1132-9" loading="lazy"></p> <h3 id="4-dugraveng-ecirc-ke-de-ve-goacutec-vuocircng-theo-mau">4. Dùng ê ke để vẽ góc vuông (theo mẫu):</h3> <p><strong>Mẫu:</strong></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b48-h11-1664694801.jpg.webp" width="426" height="277" alt="hinh-anh-goc-vuong-goc-khong-vuong-1132-10" title="hinh-anh-goc-vuong-goc-khong-vuong-1132-10" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div><p></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b48-h12-1664694815.jpg.webp" width="511" height="345" alt="hinh-anh-goc-vuong-goc-khong-vuong-1132-11" title="hinh-anh-goc-vuong-goc-khong-vuong-1132-11" loading="lazy"></p>