Fill in the following area formulas:
1. Area of Square = _____________________
2. Area of Rectangle = _____________________
3. Area of Triangle = _____________________
4. Area of Trapezoid = _____________________
5. Area of Parallelogram = _____________________
6. Area of Rhombus =     b h         where b = base and h = altitude
    Area of Rhombus =     1/2 d1 d2         where d1 and d2 are diagonals

Cross Number Puzzle


Across
a.   The diagonals of a rhombus are 15 cm and 20 cm, what is its area?
b.   If the area of a rhombus is 250 in2 and an altitude is 50 in,
      what is the length of each side?
c.   Determine the area of a triangle whose base is 13 m and altitude is 8 m.
d.   Determine the area of a parallelogram with base ft and altitude ft.
f.   Determine the area of a square whose side is inches.

Down
a.   In parallelogram ABCD, AB = cm, AD = cm, and .
      Determine the area of parallelogram ABCD.
b.   Determine the area of the rectangle whose dimensions are .
d.   The diagonals of a rhombus are .   Determine its area.
e.   The area of a rhombus is 348 square inches and one diagonal has length equal to
      24 inches.   Determine the length of the other diagonal.