Yes, use the Law of Cosines: a2=b2+c2-2bc*cosA where a, b, c are the lengths of the sides and A is the angle opposite to a. Just plug in the three values and solve for cosA. The answer is 0.805555556 (if you make a=6) which is in the interval [-1,1] so it is in the range of cosA. Since there exists an angle A using those 3 inputs, they can form a triangle.
No
Yes
10 in
If the length of only one side is known, it is not possible to determine whether or not the triangle is right angled.
Perimeter: 5+10+length of its 3rd side
No
Yes
10
the length and side of Bermuda triangle = ?
10 1/2
If it's a right angle triangle then side ac is 10 units in length.
10 in
If the length of only one side is known, it is not possible to determine whether or not the triangle is right angled.
With an altitude of 10 units, this triangle's sides each measure 11.55 (11.54701) units.
To create a triangle, the sum of the two shorter sides must be greater than the third side. If one of the sides of length 10 is the longer side then the missing side must be greater than 10 - 10 = 0 If the missing side is the longest side then the missing side must be less than 10 + 10 = 20 Thus any length that is greater than 0 and less than 20. Examples include: 1, 5, 10, 19
To find the altitude or height of an equilateral triangle, take one-half of the length of a side of the triangle and multiple by "square root" of 3. So, if for example, the side has length 10, the height = 5 Square root of 3.
Perimeter: 5+10+length of its 3rd side