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4 years ago

A polygon has 12 sides. Find the sum of its interior angles.

Mathematics

2 answers:

Hunter-Best [27]4 years ago

6 0

$(n-2)\cdot180\\\\
(12-2)\cdot180=10\cdot180=1800$

Leya [2.2K]4 years ago

5 0

Answer: 1800°

Step-by-step explanation: In this problem, we're given that a polygon has 12 sides and we're asked find the sum of the measures of its interior angles.

The formula for finding the sum of the measures of the interior angles of a polygon is 180 (n - 2) where <em>n</em> represents the number of sides.

So here, since our polygon has 12 sides, we can plug a 12 in for the <em>n</em> in our formula and we have 180 (12 - 2) which is our equation.

Simplifying inside the parentheses first, 12 - 2 is 10 so we have 180 (10) which is 1800.

So if a polygon has 12 sides, then the sum of the measures of its interior angles is 1800°.

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3 years ago

10. The perimeter of the table shown is 16 feet. Write an equation in

Ierofanga [76]

the value of x is 5 feets and p = 2, q = 6 and r = 16.

What is a rectangle?

Rectangles are quadrilaterals having four right angles in the Euclidean plane of geometry. Various definitions include an equiangular quadrilateral,

Area of rectangle is A = a*b

Perimeter = 2(a+b)

given in the question that the perimeter is 16 feet.

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Hence, the value of x is 5 feets.

Learn more about rectangular by following the link below.

brainly.com/question/25292087

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