Parts of a Triangle: Identifying sides in a triangle

True or false:

AD is a side of triangle ABC.

Not true

True or false:

BC is a side of triangle ABC.

True

True or false:

AB is a side of the triangle ABC.

True

True or false:

DC is a side of triangle ABD.

False

True or false:

DC is a side of the triangle BDC.

True

Mark the correct answer.

AB is the side of triangle ABD.

True

True or false:

AC is a side of triangle BDC.

False

Mark the correct answer.

DC is the side of triangle ABC.

Not true

True or false:

BD is a side of the triangle ABD.

True

True or false:

BD is a side of triangle BCD.

True