Question

the sum of interior angles can be found using the following formula, where n is the number of sides: $(n - 2)\times180^{circ}$. find the sum of interior angles of a triangle, which has three sides.

Explanation:

Step1: Identify the value of n

For a triangle, $n = 3$.

Step2: Substitute n into the formula

$(n - 2)\times180^{\circ}=(3 - 2)\times180^{\circ}$
$(3 - 2)\times180^{\circ}=1\times180^{\circ}=180^{\circ}$

Answer:

$180^{\circ}$