Find the area of the parallelogram. 69 cm2 345 cm2 276 cm2 180 cm2

276 cm^2

Step-by-step explanation:

A = b*h

A = 23*12

A = 276

For this case we must find the area of the parallelogram, knowing that by definition, it is given by:

Where:

In the figure we observe that the base of the parallelogram is 23cm, then, . On the other hand, the height is 12cm, then,. Substituting:

Thus, the area of the parallelogram is

Option C

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: