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The numbers 1-9 sum to 45. If they are to be sum to 15 on each of three sides of a triangle, no number can be counted more than once (15*3 = 45).
That is, there are no numbers at any of the vertices.
Then there are several possible options:
1, 5, 9 along one side,
2, 6, 7 along the second
3, 4, 8 along the third.
So, if x marks the vertices
. . . . .x
. . . .1 . 2
. . .5 . . . 6
. . 9 . . . . . 7
. x . 3 4 8 . x
What else can I help you with?
How do you find the perimeter of a scalene triangle?
-- Find the length of one side. -- Find the length of another side. -- Find the length of the remaining side. -- Add the three numbers. -- Their sum is the perimeter of the scalene triangle.
How do the sides and angles of a triangle relate to each other?
The shortest side is opposite the smallest angle. The longest side is opposite the biggest angle. The middle length side is opposite the middle sized angle. For a triangle with sides of length a, b, and c, with c being the hypotenuse (the longest side), a2 + b2 = c2. The angles within a triangle must all add to 180o.
What are the degrees for each angle of a triangle?
In total, the angles add up to 180.
How do you find a missing side to a right triangle?
A triangle always has 180 units. You would have to add up the two sides and subtract that from 180.
What do the side lengths on a right triangle add up to?
There's no general rule or pattern to that. The rule/pattern of the side lengths on a right triangle is: (the square of the length of the shortest side) plus (the square of the length of the medium side) adds up to (the square of the length of the longest side)
How do you find the perimeter of an irregular shape?
if the shape is not labled on all the sides, then you measure each side and add the numbers together. if it is labled, then you just add the numbers on each side
What is the formula for the perimeter of a equilateral triangle?
Add the lengths of each side together to get the perimeter.
How do you find the perimeter of a scalene triangle?
-- Find the length of one side. -- Find the length of another side. -- Find the length of the remaining side. -- Add the three numbers. -- Their sum is the perimeter of the scalene triangle.
What did pascal do for maths?
he invented the pascal triangle . it is a triangle where every two numbers add up to the number below them while there are all 1's going all the way down each diagonal side of the triangle. he also invented the first mechanical calculator machine.
How do you calculate the perimeter of a triangle?
-- Measure or calculate the length of one side. -- Measure or calculate the length of another side. -- Measure or calculate the length of the only remaining side. -- Add the three numbers. The sum is the perimeter of the triangle.
Do you add each side of triangle to get the permimeter?
Yes, the perimeter of any figure is the sum of all the sides.
How do you calculate perimeter of a triangle?
-- Measure or calculate the length of one side. -- Measure or calculate the length of another side. -- Measure or calculate the length of the only remaining side. -- Add the three numbers. The sum is the perimeter of the triangle. ----------------------------------- The perimeter is the sum of all three sides. Sometimes it is unnecessary to compute each side length; all we care about is the sum.
Find the perimeter of a triangle?
Just add each of the three lengths of the triangle together. In an equilateral triangle, all side are the same. In an isosceles, 2 sides are the same and one is different.
How do you find the perimeter of a quadrangular plot?
Measure the length of each side and add the numbers.
How can you tell if 3 sides of a triangle are acute or obtuse?
First you would square the length of each of the sides. You'd add the squares of the smaller two numbers. If they are smaller than the square of the biggest side, then the triangle is obtuse. If their sum is bigger, then the triangle is acute. If they are equal, then the triangle is a right triangle.Example:length of sides-23, 34, 49232+342__492529+1156__24011685
Do all the side of a triangle add up to 360?
no
Add two triangle numbers to make 38?
10 + 28 are two triangle numbers that, added together total 38.
