Find the perimeter of an isosceles triangle with a base 13 cm and a side 8 cm.

univerkov | August 2, 2021 | education

Using the perimeter formula △ -ka P △ = a + b + c, we solve the problem (a, b, c – sides).

In an isosceles △ -ke, the two sides are the same (these are the sides by definition).

So, P △ = 13 cm + 8 cm + 8 cm = 13 cm + 2 * 8 cm = 13 cm + 16 cm = 29 cm.

Answer: P △ = 29 cm.

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