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in this problem we are asked to find the total area
we will know that this
figure is composed of two rectangles
rectangle A
and rectangle B
therefore in order to find the total area we can take and find the area
of rectangle a
and add that to
the area
of rectangle B
we also know that the area of a rectangle is given by its lengths
times its width
let's look at rectangle A
in rectangle A
we are going to have to find the length and the width
we will know that the length
of rectangle A
is given by ten centimeters
in order to find the width
we will see that the width is two centimeters
therefore the area of rectangle A is given by length times width
in this case ten times two
or
twenty centimeters squared
now we can look at rectangle B
to find the length of rectangle B
we can see
the length can be given by seven centimeters
the width of
rectangle B
is given by four centimeters
therefore the area again given by length times width
program tangled b
is seven times four
which is twenty eight
centimeters squared
therefore the total area
is given by the sum of the area rectangle A
and the area of rectangle B
therefore the total area is given by
twenty
plus twenty eight
or forty eight
centimeters squared