Which statements about finding the area of the equilateral triangle are true? check all that apply. the apothem can be found using the pythagorean theorem. the apothem can be found using the tangent ratio. the perimeter of the equilateral triangle is 15 cm. the length of the apothem is approximately 2.5 cm. the area of the equilateral triangle is approximately 65 cm2.

The correct options are 1, 2 and 4.

Step-by-step explanation:

The given triangle is an equilateral triangle. All the sides of an equilateral triangle are same. All interior angles are equal with measure 60 degree.

The distance from the center of an equilateral triangle to the midpoint of a side is known as apothem. In the given figure letter a represents the apothem.

Point D is the midpoint of BC,

Use Pythagorean theorem in triangle COD. So, option 1 is correct.

The distance can not be negative, so the length of the apothem is approximately 2.5 cm. Option 4 is correct.

The line OC bisects the angle C.

Therefore option 2 is correct.

The perimeter of an equality triangle is

Option 3 is incorrect.

Option 5 is incorrect.

Therefore options 1, 2 and 4 are correct.

linear

step-by-step explanation: