![]() ![]() The arm's length is one-third of the length of the longer base. The difference in the length of the bases is 6 cm. The circumference of the isosceles trapezoid is 34 cm. In an isosceles triangle, the arm's length and the length of the base are in a ratio of 3 to 5. A triangle has sides with lengths of 12 cm, 14 cm and 20 cm.We encourage you to watch this tutorial video on this math problem: video1 Related math problems and questions: A triangle has sides with lengths of 10 cm, 12 cm and 18 cm. An equilateral triangle has a side length of 20 cm. An equilateral triangle has a side length of 10 cm. ![]() The perimeter of an isosceles triangle is 30 cm and equal side has a length of 9 cm. If the length of an equal side is 6 m, what is the length of the base?Ħ. The perimeter of an isosceles triangle is 18 m. An equilateral triangle has a side length of 8 cm. What is the perimeter of an equilateral triangle with a side length of 5 cm?Ĥ. If the length of the hypotenuse is 25 cm, what is the length of the other two sides?ģ. The perimeter of a right-angled triangle is 40 cm. What is the perimeter of a triangle with sides of 5 cm, 7 cm and 9 cm?Ģ. We get P = 5 cm + 6 cm + 8 cm = 19 cm Practice Questions of Perimeter of a Triangleġ. What is its perimeter?Įxplanation: Using the formula P = a + b + c, A triangle has sides with lengths of 5 cm, 6 cm and 8 cm. Therefore, the lengths of the other two sides are 8.5 cm each.ĥ. Thus, each of the other two sides has a length: (17 cm / 2) = 8.5 cm. Since the triangle is isosceles, the other two sides must be equal in length. If one side is 7 cm long, what are the lengths of the other two sides?Įxplanation: Since the perimeter is 24 cm and one side is 7 cm, the sum of the other two sides must be: 24 cm - 7 cm = 17 cm. An isosceles triangle has a perimeter of 24 cm. If an equilateral triangle has a perimeter of 21 cm, what is the length of each of its sides?Įxplanation: Using the formula P = 3a, on putting the value of perimeter in the formulaĤ. What is its perimeter?Įxplanation: Using the formula P = a + b + c,ģ. A triangle has sides with lengths of 6 cm, 8 cm and 10 cm. So, the length of the third side is 13 cm.Ģ. If one side has a length of 17 cm and another side has a length of 18 cm, what is the length of the third side?Įxplanation: We can use the formula P = a + b + c and put the given values to get 48 cm = 17 cm + 18 cm + c. Solved Questions of Perimeter of a Triangleġ. So, if a scalene triangle has side lengths a, b and c, then its perimeter P can be calculated using the formula:Įxample: If a scalene triangle has side lengths of 3 cm, 4 cm and 5 cm, then its perimeter is: The perimeter of a scalene triangle is simply the sum of the lengths of all three sides. Therefore, the perimeter of this isosceles triangle is 27 units.Ī scalene triangle is a triangle where all three sides are of different lengths. To find the perimeter, we add up the length of all three sides: An isosceles triangle is a triangle that has two sides of equal length and the third side is slightly longer or shorter.Įxample: Consider an isosceles triangle with two sides of length 10 units and third side 7 units. The perimeter of an isosceles triangle is the total length of all three sides of the triangle. So, the perimeter of this equilateral triangle is 15 units. Solution: The perimeter of this triangle would be: An equilateral triangle has all its sides equal in length, so the perimeter is simply three times the length of one side.Įxample: Let's consider an equilateral triangle with a side length of 5 units. The perimeter of an equilateral triangle is the sum of the lengths of all its sides. Where a, b and c are the lengths of the sides of the triangle. The formula for the perimeter of a triangle is P = a + b + c, The unit of the perimeter of a triangle is metres, centimetres, inches and feet etc. A triangle can have three sides, and the perimeter is calculated by adding all three sides together. It is a measure of the length around the outside of the triangle. The perimeter of a triangle is the total length of all its sides added together. There are three types of triangles on the basis of sides. These line segments are said to be sides. ![]() Triangle is a closed figure made up of three-line segments. The reading material provided on this page for Formula for Perimeter of a Triangle is specifically designed for students in grades 5 and 6. CREST International Spell Bee Winter (CSBW).CREST International Spell Bee Summer (CSB). ![]()
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