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What is the perimeter of a triangle with side lengths 7 cm, 9 cm, and 12 cm?

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To find the perimeter of a triangle with side lengths 7 cm, 9 cm, and 12 cm, we add the lengths of all three sides.

Perimeter = 7 cm + 9 cm + 12 cm

Perimeter = 28 cm

Therefore, the perimeter of the triangle is 28 cm.
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The perimeter of a polygon is the sum of the lengths of all its sides.

In this case, the triangle has three sides with lengths 7 cm, 9 cm, and 12 cm.

To find the perimeter, we simply add up these three lengths:

perimeter = 7 cm + 9 cm + 12 cm

perimeter = 28 cm

Therefore, the perimeter of the triangle is 28 cm.
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The perimeter of triangle is the total length of its three sides. To find the perimeter, we need to add the side lengths together:

Perimeter = side 1 + side 2 + side 3

               = 7 cm + 9 cm + 12 cm

               = 28 cm

Therefore, the perimeter of a triangle with side lengths 7 cm, 9cm and 12 cm is 28 cm.
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The perimeter of the triangle is 28 cm.

To get this answer, we add up the lengths of all three sides:

7 cm + 9 cm + 12 cm = 28 cm

Therefore, the perimeter of the triangle is 28 cm.
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Perimeter is defined as the length of the boundary of any closed area sk perimeter of triangle is to calculate and add all the 3 length of side of triangle so in fhis case answer will be 7+9+12 = 28 cm 
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As we know the perimeter of any triangle can be computed by adding all sides as follows 

Here we have the length of one side of the triangle = 7cm

                 the length of the second side of the triangle =9cm

                 the length of the third side of the triangle =12cm

Accordingly perimeter = 7cm + 9cm+12cm

                                         = ( 7+9+12)cm

                                         = 28cm

Therefore the perimeter becomes 28cm.
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To find the perimeter of a triangle, simply add up the lengths of its three sides. In this case:

Perimeter = 7 cm + 9 cm + 12 cm = 28 cm

So, the perimeter of the triangle with side lengths 7 cm, 9 cm, and 12 cm is 28 cm.
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The perimeter (\(P\)) of a triangle is the sum of its three side lengths.


For a triangle with side lengths 7 cm, 9 cm, and 12 cm:

\[ P = 7 \, \text{cm} + 9 \, \text{cm} + 12 \, \text{cm} = 28 \, \text{cm} \]

So, the perimeter is \(28 \, \text{cm}\).
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To find the perimeter of a triangle, you simply need to add the lengths of all three sides together.

Given that the side lengths of the triangle are 7 cm, 9 cm, and 12 cm, you can calculate the perimeter as follows:

Perimeter = 7 cm + 9 cm + 12 cm

Perimeter = 28 cm

So, the perimeter of the triangle with side lengths 7 cm, 9 cm, and 12 cm is 28 cm.
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In order to count Perimeter of the triangle you need to add all three of the lengths of sides. And what it’s equal to is the correct answer. So it will be like this


Perimeter= 7+9+12=28 




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