It is given that the three sides of a triangle are 10 cm, a cm and b cm.
(A) Write down a set of values a & b such that the triangle is an isosceles acute-angled triangle.Explain your answer briefly.
(B) Write down a set of values a & b such that the triangle is an isosceles obtuse-angled triangle.Explain your answer briefly.
It is given that the three sid
2013-12-29 9:46 pm
回答 (1)
2013-12-29 10:19 pm
✔ 最佳答案
(A)(a, b) = (10, 9.9)
The sides of the triangle: 10 cm, 10 cm, 9.9 cm
It is close to an equilateral triangle, and thus each interior angle is close to 60°.
Hence, it is an isosceles acute-angled triangle.
(B)
(a, b) = (10, 19.9)
The sides of the triangle: 10 cm, 10 cm, 19.9 cm
It is close to a straight line, and thus the top angle is close to 180°.
Hence, it is an isosceles obtuse-angled triangle.
參考: fooks
收錄日期: 2021-04-13 19:53:22
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