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Which set of three numbers could be the side lengths of a triangle A. 3 5 9 B.3 5 7 C.2 4 6 D.2 4 8?
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∙ 11y ago
It is B
Wiki User
∙ 11y ago
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How do you work out the perimeter for a triangle?
-- Make sure you have the lengths of all three sides -- Add up the lengths of all three sides to get the perimeter of the triangle.
Which set of numbers can not represent the lengths of the sides of a triangle?
There are lots of sets of numbers that fit that definition! But the important thing to remember about triangles is the Third Side Rule, or the Triangle Inequality, which states: the length of a side of a triangle is less than the sum of the lengths of the other two sides and greater than the difference of the lengths of the other two sides. So you can have a triangle with sides of 3, 4 and 5 because 3 < 4 + 5, 4 < 3 + 5 and 5 < 3 + 4; and because 3 > 5 - 4, 4 > 5 - 3 and 5 > 4 - 3. But you can't have a triangle with sides 1, 2 and 8, for example. Just imagine three pieces of wood or three straws with lengths 1, 2 and 8. Put the longest piece, 8, horizontally on the table. Then put the other two, one at each end of the longest piece. Could those two shorter sides ever meet to form a triangle? No, never!-----------------------------------------------------------------------------------------------------------The length is always positive, so that all real positive numbers can represent the length of sides of a triangle: {x| x > 0}.------------------------------------------------------------------------------------------------------------Whoever added that to my answer, sorry, I beg to differ! The question asked what SET of numbers cannot represent the lengths of the sides of a triangle. There are infinite possibilities for that. While the lengths are always a set of real positive numbers, not every possible set of real positive numbers is a potential set of numbers that represent the lengths of the sides of a triangle!
What is the correct definition for scalene triangle?
A triangle in which no sides are the same lengthA scalene triangle is a triangle in whichall three sides have different lengths.
HOW DO YOu classify triangles based on the side lengths?
Triangles are not classified by the length of their sides, but by their shapes. A right triangle, for example, is a triangle which includes one 90o angle. This is true regardless of the size of the triangle; it could have sides a thousand miles long or a thousandth of an inch long and still be a right triangle, as long as it has that 90o angle. An equilateral triangle has three sides which are all of the same length. This is true, again, regardless of the size of the triangle. The three sides could all be a million miles long, or they could be microscopic, but if they are all the same length, then the triangle is equilateral.It would be better to ask about classifying triangles by the relative lengths of their sides.If all the sides are different lengths, we class it as a Scalene Triangle. (Note that all three angles also are different.)If exactly two sides have the same length we call it an Isosceles triangle (Note that two of the angles also are the same size. And try to get the spelling right!!!)If all three sides are the same length, we call it an Equilateral triangle. (If you like you could say that it is a special case of an isosceles triangle). All three angle are the same and they always are sixty degrees each.
What is the formula for perimeter of a right triangle when one side is missing?
Surely you know how to find the third side of a right triangle, when you know the lengths of the other two. Find it, and then add up the lengths of the three sides to get the perimeter.
Which three measurements could be the length of the sides of a triangle?
The list that accompanies the question doesn't contain any numbers that could be the lengths of the sides of a triangle.
How do you find a right triangle when you have three numbers?
Three numbers may or may not define a right triangle. Also, the answer will depend on whether the three numbers are the lengths of sides or the measures of angles.
What is the area of a figure with lengths of 2 7 and 10?
It is not possible to answer the question without information about the shape. The fact that there are three numbers given might suggest that it is a triangle. However the three lengths are not consistent with a triangle.
How do you determine if its a triangle by the lengths of the sides?
-- Each number has to be (more than the difference of the other two) but (less than their sum). -- Count the lengths of the sides. If you get to three and then run out of numbers, it's a triangle.
Which triangle has three different lengths and no angels are equal?
It is a scalene triangle that has three different lengths and no angles are equal in size.
What is the triangle that has two different lengths?
A SCALENE triangle has all three sides different lengths.
What triangle has three sides of three different lengths?
its not fair!
Can the numbers 24 32 40 be the lengths of the three sides of a right triangle?
Yes because they comply with Pythagoras' theorem for a right angle triangle
What type of Triangle has three sides of different lengths?
scalene triangle
Can 9 4 and 11 be triangle?
9, 4, and 11 are three dimensionless numbers. Yes, they can represent the lengths of the sides of a triangle. You can take three straight sticks, cut them to lengths of 9, 4, and 11 inches, then lay them down on a table so that the ends hook up and they form a triangle.
How do you work out the perimeter for a triangle?
-- Make sure you have the lengths of all three sides -- Add up the lengths of all three sides to get the perimeter of the triangle.
Lengths of a scalene triangle sides?
All three sides have different lengths.
