Maths Homework Help?
2016-12-12 5:02 am
I basically have no idea how to do this question. Its about triangles. Ill include the question attatched.
回答 (2)
2016-12-12 5:11 am
✔ 最佳答案
x= angle between 2 sidesArea= (1/2)(5)(7)sinx = (35/2)sinx
Area max when sinx = 1 --->x = 90 degrees
hence side = sqrt(5^2+7^2) = ...your calculator
2016-12-12 5:16 am
Imagine the side of length 7 is the base and the side of length 5 is able to rotate about the vertex between them.
The area will be a max of (1/2) 7*5 = 17.5 when they are perpendicular.
The hypotenuse length will be sqrt(5^2 + 7^2) = sqrt(74)
The area will be a max of (1/2) 7*5 = 17.5 when they are perpendicular.
The hypotenuse length will be sqrt(5^2 + 7^2) = sqrt(74)
收錄日期: 2021-04-23 23:54:43
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