Formulas for Area of Shapes

What is the formula for finding the area of a trapezoid?

• @@A=rac{1}{2}ig(b_1 + b_2ig)h@@

• @@A=b_1 imes h@@

• @@A=rac{1}{2} imes (b_1 + b_2) imes 2h@@

• @@A=rac{1}{3}(b_1 + b_2)h@@

When you are finding the area of an object, are you looking inside the object or outside the object?

• inside

• outside

• around

• through

What is the formula for finding the area of a rectangle?

• @@A = L + W@@ (length plus width)

• @@A = L imes W@@ (length times width)

• @@A = 2(L + W)@@ (perimeter formula)

• @@A = L^2@@ (area of a square)

How do I find the mean of a data set?

• Add all the numbers together and divide by the total numbers.

• Multiply all the numbers together and divide by the total numbers.

• Add the largest and smallest numbers and divide by 2.

• Subtract the smallest number from the largest number.

When finding the perimeter of an object, are you looking on the inside or outside of the object?

• inside

• outside

• both inside and outside

• only the edges

What is the formula for finding the area of a triangle?

• @@A = rac{1}{2}bh@@

• @@A = b imes h@@

• @@A = rac{1}{3}bh@@

• @@A = b + h@@

How do you find the mode of a data set?

• The mode is the number that appears most frequently in the data set.

• The mode is the average of all the numbers in the data set.

• The mode is the middle value when the data set is ordered.

• The mode is the largest number in the data set.

How do I find the perimeter of an object?

• Multiply the length of one side by the number of sides

• Add all the sides (outside of the shape)

• Calculate the area of the shape

• Measure the diagonal and multiply by two

What is the formula for finding the area of a parallelogram?

• @@A=bh@@

• @@A=rac{1}{2}bh@@

• @@A=b^2@@

• @@A=2b+2h@@

How do you find the median of a data set?

• Put the numbers in order from least to greatest, then find the number that is in the middle. If there are two middle numbers, add the two numbers together and divide by 2.

• Calculate the average of all the numbers in the data set.

• Identify the largest number in the data set.

• Count the total number of values in the data set.