A triangle is a polygon with three corners and three sides. The corners, also called vertices, are zero-dimensional points while the sides connecting them, also called edges, are one-dimensional line segments.
삼각형은 세 개의 점과 세 개의 선분으로 이루어진 다각형이다. 삼각형의 세 점을 꼭짓점 corner, vertex 이라 하고, 선분을 변 side, edge 이라고 한다.
Equilateral Triangle 정삼각형
equilateral [ì:kwəlǽtərəl]
An equilateral triangle is a triangle in which all three sides have the same length, and the three angles are equal.
정삼각형은 세 변 side 의 길이 length 가 모두 같은 삼각형이며, 세 각 angle 의 크기도 모두 같다.
Isosceles Triangle 이등변삼각형
isosceles [aɪ|sɑːsəliːz]
An isosceles triangle has at least two equal sides.
이등변삼각형은 두 변의 길이가 같은 삼각형이다.
Scalene Triangle 부등변삼각형
scalene [skeilí:n]
A scalene triangle is a triangle that has all its sides of different lengths.
Janet made the largest equilateral triangle by straightening and rebending a wire that made an isosceles triangle. What is the length of one side of the equilateral triangle?
이등변삼각형을 만든 철사를 펴서 가장 큰 정삼각형을 만들었습니다. 이 정삼각형의 한 변의 길이를 구하세요.
Explanation:
해설:
Two sides of an isosceles triangle have the same length so the sum of the three sides is Since the sum of the lengths of the three sides of an equilateral triangle is , and all sides of an equilateral triangle have the same length, the length of one side will be
이등변삼각형은 이등변삼각형은 두 변의 길이가 같으므로 세 변의 길이의 합은 정삼각형의 세 변의 길이의 합은 이고, 정삼각형의 세 변의 길이는 같으므로 한 변의 길이는
Question: 문제:
Janet made the largest equilateral triangle by straightening and rebending a wire that made an isosceles triangle. What is the length of one side of the equilateral triangle? 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zY4IDQwNTggNTI1IDM1OTcgCkMgMjY5IDMxMTggMjQzIDI1MjQgMjQzIDIwMjUgCkMgMjQzIDE2NjEgMjUwIDExMDYgNDQ4IDYxOSAKQyA3MjMgLTM5IDEyMTYgLTEyOCAxNDY2IC0xMjggCkMgMTc2MCAtMTI4IDIyMDggLTcgMjQ3MCA2MDAgCkMgMjY2MiAxMDQyIDI2ODggMTU1OSAyNjg4IDIwMjUgCnoKTSAxNDY2IC0yNiAKQyAxMDU2IC0yNiA4MTMgMzI1IDcyMyA4MTIgCkMgNjUzIDExODggNjUzIDE3MzggNjUzIDIwOTYgCkMgNjUzIDI1ODggNjUzIDI5OTcgNzM2IDMzODcgCkMgODU4IDM5MjkgMTIxNiA0MDk2IDE0NjYgNDA5NiAKQyAxNzI4IDQwOTYgMjA2NyAzOTIzIDIxODkgMzQwMCAKQyAyMjcyIDMwMzYgMjI3OCAyNjA3IDIyNzggMjA5NiAKQyAyMjc4IDE2ODAgMjI3OCAxMTY5IDIyMDIgNzkyIApDIDIwNjcgOTUgMTY5MCAtMjYgMTQ2NiAtMjYgCnoKIiB0cmFuc2Zvcm09InNjYWxlKDAuMDE1NjI1KSIvPgogICAgIDwvZGVmcz4KICAgICA8dXNlIHhsaW5rOmhyZWY9IiNDTVIxNy0zMyIgdHJhbnNmb3JtPSJzY2FsZSgwLjk5NjI2NCkiLz4KICAgICA8dXNlIHhsaW5rOmhyZWY9IiNDTVIxNy0zMCIgdHJhbnNmb3JtPSJ0cmFuc2xhdGUoNDUuNjkwNDc3IDApIHNjYWxlKDAuOTk2MjY0KSIvPgogICAgPC9nPgogICA8L2c+CiAgIDxnIGlkPSJ0ZXh0XzIiPgogICAgPCEtLSAkMjEkIC0tPgogICAgPGcgdHJhbnNmb3JtPSJ0cmFuc2xhdGUoMTM2LjY5OTY0NiA5Ny41Njk0NDQpIHNjYWxlKDAuMjIgLTAuMjIpIj4KICAgICA8ZGVmcz4KICAgICAgPHBhdGggaWQ9IkNNUjE3LTMyIiBkPSJNIDI2NjkgOTg5IApMIDI1NTQgOTg5IApDIDI0OTAgNTM2IDI0MzggNDU5IDI0MTMgNDIwIApDIDIzODEgMzY5IDE5MjAgMzY5IDE4MzAgMzY5IApMIDYwMiAzNjkgCkMgODMyIDYxOSAxMjgwIDEwNzIgMTgyNCAxNTk3IApDIDIyMTQgMTk2NyAyNjY5IDI0MDIgMjY2OSAzMDM1IApDIDI2NjkgMzc5MCAyMDY3IDQyMjQgMTM5NSA0MjI0IApDIDY5MSA0MjI0IDI2MiAzNjA0IDI2MiAzMDMwIApDIDI2MiAyNzgwIDQ0OCAyNzQ4IDUyNSAyNzQ4IApDIDU4OSAyNzQ4IDc4MSAyNzg3IDc4MSAzMDEwIApDIDc4MSAzMjA3IDYxNCAzMjY0IDUyNSAzMjY0IApDIDQ4NiAzMjY0IDQ0OCAzMjU4IDQyMiAzMjQ1IApDIDU0NCAzNzkwIDkxNSA0MDU4IDEzMDYgNDA1OCAKQyAxODYyIDQwNTggMjIyNyAzNjE3IDIyMjcgMzAzNSAKQyAyMjI3IDI0NzkgMTkwMSAyMDAwIDE1MzYgMTU4NCAKTCAyNjIgMTQ2IApMIDI2MiAwIApMIDI1MTUgMCAKTCAyNjY5IDk4OSAKegoiIHRyYW5zZm9ybT0ic2NhbGUoMC4wMTU2MjUpIi8+CiAgICAgIDxwYXRoIGlkPSJDTVIxNy0zMSIgZD0iTSAxNzAyIDQwNTggCkMgMTcwMiA0MTkyIDE2OTYgNDE5MiAxNjA2IDQxOTIgCkMgMTM1NyAzOTE2IDk3OSAzODI3IDYyMSAzODI3IApDIDYwMiAzODI3IDU3MCAzODI3IDU2MyAzODA4IApDIDU1NyAzNzk1IDU1NyAzNzgyIDU1NyAzNjQ4IApDIDc1NSAzNjQ4IDEwODggMzY4NiAxMzQ0IDM4MzkgCkwgMTM0NCA0NjEgCkMgMTM0NCAyMzYgMTMzMSAxNjAgNzgxIDE2MCAKTCA1ODkgMTYwIApMIDU4OSAwIApDIDg5NiAwIDEyMTYgMCAxNTIzIDAgCkMgMTgzMCAwIDIxNTAgMCAyNDU4IDAgCkwgMjQ1OCAxNjAgCkwgMjI2NiAxNjAgCkMgMTcxNSAxNjAgMTcwMiAyMzAgMTcwMiA0NTggCkwgMTcwMiA0MDU4IAp6CiIgdHJhbnNmb3JtPSJzY2FsZSgwLjAxNTYyNSkiLz4KICAgICA8L2RlZnM+CiAgICAgPHVzZSB4bGluazpocmVmPSIjQ01SMTctMzIiIHRyYW5zZm9ybT0ic2NhbGUoMC45OTYyNjQpIi8+CiAgICAgPHVzZSB4bGluazpocmVmPSIjQ01SMTctMzEiIHRyYW5zZm9ybT0idHJhbnNsYXRlKDQ1LjY5MDQ3NyAwKSBzY2FsZSgwLjk5NjI2NCkiLz4KICAgIDwvZz4KICAgPC9nPgogIDwvZz4KIDwvZz4KIDxkZWZzPgogIDxjbGlwUGF0aCBpZD0icDQ2OGM5YWU3OTAiPgogICA8cmVjdCB4PSI3LjIiIHk9IjcuMiIgd2lkdGg9IjQxNy42IiBoZWlnaHQ9IjIyNi41MTYwMzciLz4KICA8L2NsaXBQYXRoPgogPC9kZWZzPgo8L3N2Zz4K' 이등변삼각형을 만든 철사를 펴서 가장 큰 정삼각형을 만들었습니다. 이 정삼각형의 한 변의 길이를 구하세요. 'data:image/svg+xml;base64,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'
Explanation: 해설:
Two sides of an isosceles triangle have the same length so the sum of the three sides is 21+21+30=72 <br> Since the sum of the lengths of the three sides of an equilateral triangle is 72, and all sides of an equilateral triangle have the same length, the length of one side will be 72-:3=24 이등변삼각형은 이등변삼각형은 두 변의 길이가 같으므로 세 변의 길이의 합은 21+21+30=72<br> 정삼각형의 세 변의 길이의 합은 72이고, 정삼각형의 세 변의 길이는 같으므로 한 변의 길이는 72-:3=24
Acute Triangle 예각삼각형
acute [əˈkjuːt]
An acute triangle or acute-angled triangle is a triangle with three acute angles (less than ).
예각삼각형은 세 각의 크기가 모두 보다 작은 삼각형이다.
Right Triangle 직각삼각형
right [raɪt]
A right triangle or right-angled triangle, sometimes called an orthogonal triangle or rectangular triangle, is a triangle where two sides are perpendicular, forming a right angle (). The side opposite to the right angle is called the hypotenuse. The sides adjacent to the right angle are called legs. The three sides of a right triangle are related by the Pythagorean theorem.
직각삼각형은 한 각이 직각인 삼각형이다. 직각삼각형에서 직각의 대변 opposite side 을 빗변 hypotenuse 이라고 한다. 이 빗변의 길이는 피타고라스 정리 Pythagorean theorem 에 의해 계산할 수 있다.
Obtuse Triangle 둔각삼각형
obtuse [əb|tjuːs]
An obtuse triangle or obtuse-angled triangle is a triangle with one obtuse angle (greater than ) and two acute angles.
둔각삼각형은 한 각의 크기가 둔각, 즉 를 넘는 각인 삼각형을 말한다. 둔각삼각형에서 나머지 두 각의 합은 보다 작다.
Answer 4. The sum of the three angles of a triangle is , so the angles measure , , and . Since one angle is greater than , this is an obtuse triangle.
정답 4. 삼각형의 세 각의 크기의 합은 이므로 세 각은 , , 이다. 한 각의 크기가 보다 크므로 둔각삼각형이다.
Question: 문제:
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' qquad 1. Equilateral triangle <br> qquad 2. Acute triangle <br> qquad 3. Right triangle <br> qquad 4. Obtuse triangle <br> qquad 5. Isosceles triangle 다음 그림의 삼각형을 알맞게 분류한 것은? 'data:image/svg+xml;base64,<?xml version="1.0" encoding="utf-8" standalone="no"?>
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' qquad 1. 정삼각형 <br> qquad 2. 예각삼각형 <br> qquad 3. 직각삼각형 <br> qquad 4. 둔각삼각형 <br> qquad 5. 이등변삼각형
Explanation: 해설:
Answer 4. The sum of the three angles of a triangle is 180^(@), so the angles measure 100^(@), 53^(@), and 27^(@). Since one angle is greater than 90^(@), this is an obtuse triangle. 정답 4. 삼각형의 세 각의 크기의 합은 180^(@)이므로 세 각은 100^(@), 53^(@), 27^(@)이다. 한 각의 크기가 90^(@)보다 크므로 둔각삼각형이다.
