Yes, it is.
If its a right angle triangle then its side lengths could be 3, 4 and 5
you add up the measures of the sides Perimeter=a+b+cAdd up the three sides together
The perimeter of any triangle is the sum of its 3 sides
That depends on what the side lengths are. Until the side lengths are known, the triangle can only be classified as a triangle.
The 3rd angle is 30 degrees and so it is an obtuse or a scalene triangle with 3 different side lengths and no right angle.
Yes, it is.
If its a right angle triangle then its side lengths could be 3, 4 and 5
Yes
A protractor is used for measuring angles and the 3 angles in a triangle add up to 180 degrees.
3 inches, an equilateral triangle has equal side lengths and angle measures
We know that a right triangle is a triangle having a right angle, where the side opposite the right angle is the hypotenuse, and the perpendicular sides are the legs of the right triangle. The Pythagorean theorem gives the relationship between the lengths of the sides of a right triangles. In the case where you know only the measure lengths of the sides of a triangle, you need to test these measures. If one of the sides of the triangle has a square measure equal to the sum of the square measures of two other sides, then this side is called the hypotenuse and opposite to this side is a 90 degree angle, which is a right angle. So, you can say that this triangle is a right triangle. Pythagorean triple are very helpful to determine a right triangle, such as: (3, 4, 5), (5,12,13), (8, 15, 17), (7, 24, 25), and (20, 21, 29).
You can find relative lengths (compared to each other), but not absolute ones (what they actually are).
Too broad of a question... What measure are you talking about? angles? side lengths?
you add up the measures of the sides Perimeter=a+b+cAdd up the three sides together
A scalene triangle has three sides of different lengths. A right triangle can be scalene - for instance the '3-4-5' triangle has a right angle opposite the side which is 5 units long.
Insufficient information. Is it a right triangle? And if so, which sides are the 7 and 3?