The base of an isosceles triangle is 6.5 cm, and the length of the lateral side is 0.8
| April 5, 2021 | education
The base of an isosceles triangle is 6.5 cm, and the length of the lateral side is 0.8 times the length of the base. Calculate the perimeter of the triangle.
An isosceles triangle is a triangle in which two sides are equal, and these sides are lateral. Find the length of the side. It is 0.8 times the length of the base. To find the fraction of a number, you need to multiply the given number by this fraction.
6.5 * 0.8 = 5.2 (cm) – the lengths of the two lateral sides.
The perimeter of a triangle is equal to the sum of the lengths of its three sides.
P = 6.5 + 5.2 + 5.2 = 16.9 (cm)
Answer. 16.9 cm.
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