To determine if a certain length could be the third side of a triangle, we can use the Triangle Inequality Theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
So, for a triangle with side lengths of 4 and 6:
4 + 6 = 10
Let's check each option:
1. 2
4 + 2 = 6 (This does not satisfy the theorem as 6 is not greater than 2)
2. 11
4 + 11 = 15 (This satisfies the theorem as 15 is greater than 11)
3. 1
4 + 1 = 5 (This satisfies the theorem as 5 is greater than 1)
4. 9
4 + 9 = 13 (This satisfies the theorem as 13 is greater than 9)
So, the third side of the triangle could be 1 or 9.
Apply the Triangle Inequality Theorem and determine which option could be the third side of a triangle if the first two sides measure 4 and 6.
2
11
1
9
9 answers
choose one answer
The third side of the triangle could be 1.
Apply the Triangle Inequality Theorem and determine which group of side measures will form a triangle.
12, 10, 22
8, 1, 7
2, 7, 6
9, 4, 3
12, 10, 22
8, 1, 7
2, 7, 6
9, 4, 3
To determine which group of side measures will form a triangle, we need to apply the Triangle Inequality Theorem. The theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
Let's check each group of side measures:
1. 12, 10, 22
12 + 10 = 22 (This satisfies the theorem as 22 is greater than 22, but it fails to satisfy the other two combinations, making it unable to form a triangle)
2. 8, 1, 7
8 + 1 = 9 (This satisfies the theorem as 9 is greater than 7)
1 + 7 = 8 (This satisfies the theorem as 8 is greater than 7)
8 + 7 = 15 (This satisfies the theorem as 15 is greater than 8)
Therefore, the lengths 8, 1, 7 can form a triangle.
3. 2, 7, 6
2 + 7 = 9 (This satisfies the theorem as 9 is greater than 6)
2 + 6 = 8 (This satisfies the theorem as 8 is greater than 7)
7 + 6 = 13 (This satisfies the theorem as 13 is greater than 2)
Therefore, the lengths 2, 7, 6 can form a triangle.
4. 9, 4, 3
9 + 4 = 13 (This satisfies the theorem as 13 is greater than 3)
4 + 3 = 7 (This satisfies the theorem as 7 is greater than 4)
9 + 3 = 12 (This satisfies the theorem as 12 is greater than 4)
Therefore, the lengths 9, 4, 3 can form a triangle.
Therefore, the combinations that can form a triangle are:
- 8, 1, 7
- 2, 7, 6
- 9, 4, 3
Let's check each group of side measures:
1. 12, 10, 22
12 + 10 = 22 (This satisfies the theorem as 22 is greater than 22, but it fails to satisfy the other two combinations, making it unable to form a triangle)
2. 8, 1, 7
8 + 1 = 9 (This satisfies the theorem as 9 is greater than 7)
1 + 7 = 8 (This satisfies the theorem as 8 is greater than 7)
8 + 7 = 15 (This satisfies the theorem as 15 is greater than 8)
Therefore, the lengths 8, 1, 7 can form a triangle.
3. 2, 7, 6
2 + 7 = 9 (This satisfies the theorem as 9 is greater than 6)
2 + 6 = 8 (This satisfies the theorem as 8 is greater than 7)
7 + 6 = 13 (This satisfies the theorem as 13 is greater than 2)
Therefore, the lengths 2, 7, 6 can form a triangle.
4. 9, 4, 3
9 + 4 = 13 (This satisfies the theorem as 13 is greater than 3)
4 + 3 = 7 (This satisfies the theorem as 7 is greater than 4)
9 + 3 = 12 (This satisfies the theorem as 12 is greater than 4)
Therefore, the lengths 9, 4, 3 can form a triangle.
Therefore, the combinations that can form a triangle are:
- 8, 1, 7
- 2, 7, 6
- 9, 4, 3
choose one
The group of side measures that will form a triangle is 8, 1, 7.
Two sides of a triangle measure 3.7 and 8.2. Apply the Triangle Inequality Theorem to find a possible measure of the third side.
4.2
5.5
3.5
4.5
4.2
5.5
3.5
4.5
To find a possible measure of the third side of the triangle, we need to apply the Triangle Inequality Theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
Given that the two sides measure 3.7 and 8.2:
3.7 + 8.2 = 11.9
Now, let's check each option:
1. 4.2
3.7 + 4.2 = 7.9 (This satisfies the theorem as 7.9 is less than 8.2)
4.2 + 8.2 = 12.4 (This satisfies the theorem as 12.4 is greater than 3.7)
2. 5.5
3.7 + 5.5 = 9.2 (This satisfies the theorem as 9.2 is less than 8.2)
5.5 + 8.2 = 13.7 (This satisfies the theorem as 13.7 is greater than 3.7)
3. 3.5
3.7 + 3.5 = 7.2 (This satisfies the theorem as 7.2 is less than 8.2)
3.5 + 8.2 = 11.7 (This satisfies the theorem as 11.7 is greater than 3.7)
4. 4.5
3.7 + 4.5 = 8.2 (This satisfies the theorem as 8.2 is equal to 8.2)
Therefore, the possible measure of the third side of the triangle is 4.5.
Given that the two sides measure 3.7 and 8.2:
3.7 + 8.2 = 11.9
Now, let's check each option:
1. 4.2
3.7 + 4.2 = 7.9 (This satisfies the theorem as 7.9 is less than 8.2)
4.2 + 8.2 = 12.4 (This satisfies the theorem as 12.4 is greater than 3.7)
2. 5.5
3.7 + 5.5 = 9.2 (This satisfies the theorem as 9.2 is less than 8.2)
5.5 + 8.2 = 13.7 (This satisfies the theorem as 13.7 is greater than 3.7)
3. 3.5
3.7 + 3.5 = 7.2 (This satisfies the theorem as 7.2 is less than 8.2)
3.5 + 8.2 = 11.7 (This satisfies the theorem as 11.7 is greater than 3.7)
4. 4.5
3.7 + 4.5 = 8.2 (This satisfies the theorem as 8.2 is equal to 8.2)
Therefore, the possible measure of the third side of the triangle is 4.5.