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9+9+9 = 27 cm

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Q: What is the perimeter of an equilateral triangle with 9-cm sides?
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Related questions

An equilateral triangle with sides measuring 8cm 9cm and 10 cm?

This is not an equilateral triangle.


Is it possible to draw a equilateral triangle with the sides 8cm 9cm 10cm?

No because the 3 sides of an equilateral triangle are equal in length


Is it possible for a triangle to have sides with 9cm 9cm 9 cm?

Yes. It would be an equilateral triangle with three equal sides. It would also be equiangular, with three equal angles, each measuring 60 degrees.


What is the perimeter of a regular pentagon with 9cm sides?

Pentagon has 5 sides Regular => each side 9cm => perimeter = 5 x 9cm = 45cm


How do you make a shape with a perimeter of 9cm?

Well, honey, making a shape with a perimeter of 9cm is as easy as pie. You could have a triangle with sides measuring 3cm, 3cm, and 3cm. Or you could have a rectangle with sides measuring 2cm and 2.5cm. Just remember, the perimeter is the sum of all the sides, so get those measuring tapes out and get creative!


How do you draw a shape with a 9cm perimeter?

To draw a shape with a 9cm perimeter, you can create a triangle, square, or rectangle. For a triangle, you could have sides measuring 3cm, 3cm, and 3cm. For a square, all four sides would be 2.25cm. For a rectangle, two sides could be 2cm and the other two sides could be 2.5cm. These shapes will all have a perimeter of 9cm.


Find the perimeter of a triangle with side measuring 10cm, 12 cm and 9cm?

All you do is add the sides up for the perimeter. 12 + 10 + 9 = 31


A shape with the perimeter of 9cm?

any 2-D shape could have a perimeter of 9cm. One example is a square with sides of 9/4 cm.


What is the perimeter of a rectangle 6Cm to 9Cm?

Perimeter = 6cm + 6cm + 9cm + 9cm = 30cm


What is the perimeter of a triangle with one side 9cm if it has an area of 72cm squared?

Area = 1/2 (base x height) If the triangle is sitting on the 9cm side, then 72 = 1/2 ( 9 x height ) Height = 16 cm There are an infinite number of ways to draw the remaining two sides such that the height of the triangle is 16 cm. So the given information doesn't define a unique perimeter.


A triangle's sides are 4cm 7cm and 9cm what is the area?

Area 51.


Do these three sides make a right triangle 6cm 9cm 12cm?

To determine if these three sides form a right triangle, we can use the Pythagorean theorem. In a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. In this case, we have 6^2 + 9^2 = 36 + 81 = 117 and 12^2 = 144. Since 117 is not equal to 144, these three sides (6cm, 9cm, 12cm) do not form a right triangle.