Exploring Area Calculations for Triangles and Parallelograms

What is the formula for the area of a parallelogram?

• One-half base times height

• Base plus height

• Base times height

• Height squared

What is the area of a square if one side measures 8 units?

• 16 square units

• 32 square units

• 64 square units

• 8 square units

How do you calculate the perimeter of a triangle?

• Add the length of all sides

• Multiply the length of all sides

• Divide the total length of all sides by two

• Subtract the lengths of all sides

If a triangle has a base of 21 units and a height of 8 units, what is its area?

• 84 square units

• 42 square units

• 336 square units

• 168 square units

What is the correct formula to use for the area of a triangle?

• One-half base times height

• Base times height

• One-half base plus height

• Base plus height

What method is used to find an unknown side in a rectangle when dealing with a right triangle?

• Area formula

• Algebraic manipulation

• Trigonometric ratios

• Pythagorean theorem

How do you calculate the area of a rectangle if the base is 15 units and the height is 17.3 units?

• 15 plus 17.3 square units

• 15 times 17.3 square units

• One-half of 15 times 17.3 square units

• Two times 15 plus 17.3 square units

In problems involving shaded regions, what do you do if only part of the region is shaded?

• Divide the areas

• Subtract the areas

• Add the areas

• Multiply the areas

How do you find the total area of a fully shaded region involving multiple shapes?

• Add all individual areas

• Subtract smaller areas from larger

• Multiply all individual areas

• Divide the largest area by the smallest

In a complex problem involving a right triangle, parallelogram, and an obtuse triangle, if all are shaded, how do you find the total area?

• Subtract the areas of smaller shapes from the largest

• Multiply the areas of all shapes

• Add the areas of all shapes

• Divide the area of the largest shape by the smallest