Noel correctly adds the length of three sides of a rectangle and gets 88 cm her brother Ryan correctly adds the lengths of three sides of the same rectangle and gets 80cm. What is the number of cm in the perimeter of the rectangle. I was having this discussion with another teacher and we need a third opinion.
Tooth crowns. A tooth crown or dental crown is a tooth-shaped sleeve made of porcelain or metal or a combination of both that is placed over a tooth. The dentist will match it up to the shape and colour of your other teeth.
A crown made of amalgam will look like it's made of silver but is actually a combination of at least two metals. This type of crown can be especially good for primary molars (the baby teeth at the back of a child's mouth) because it is very strong and will be able to handle the force of chewing with the back teeth.