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The distance around a triangle is 36 centimeters. If two sides are equal and the length of the third side is 14 centimeters, what is the length of each of the other two sides?

User LukeDuff
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2 Answers

5 votes

Final answer:

To find the length of the two equal sides of a triangle with a perimeter of 36 cm and the third side measuring 14 cm, we subtract the length of the third side from the total perimeter and divide by two. Each of the equal sides measures 11 cm.

Step-by-step explanation:

The student's question is about finding the lengths of the two equal sides of a triangle when the perimeter (distance around the triangle) and the length of the third side are given. The perimeter of the triangle is 36 centimeters, and the third side is 14 centimeters. To solve this, we use the fact that the sum of the lengths of all sides of the triangle equals the perimeter. Let the length of each of the equal sides be represented by x. So, we have the equation:

2x + 14 = 36

Subtracting 14 from both sides gives:

2x = 22

Dividing both sides by 2 gets us:

x = 11

Therefore, the length of each of the other two sides is 11 centimeters.

User NatureShade
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6 votes
Length of unknown side = x

36 = 14 + 2x

Subtract 13 from both sides

22 = 2x

Divide by 2 on both sides to isolate for x

11 = x

11 cm
User Fabio Ebner
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6.0k points