The distance between Senula's house and his school is 5.1km. How far is that in meters? (only write the number)

Fiona's phone is 145mm long. How long is that in centimeters? (only write the number)

Mr. Dang is definitely 1.85m tall. How tall is he in millimeters? (only write the number)

What is the perimeter of this rectangle?

The diagram shows a rectangle and a square.

If they both have equal perimeters, what is the length of one side of the square?

What is the perimeter of the cross?

(All sides are of length 10 units and all angles are right angles)

What is the perimeter of the L-shape?

What is the area of this rectangle?

What is the area of this square? (only write the number)

What is the area of this parallelogram? (only write the number)