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(a) find the area of the following (in square units). the dark rectangl…

Question

(a) find the area of the following (in square units).
the dark rectangle (on the left):
the light rectangle (on the right):
(b) give the area of the entire figure (in square units) in two different ways.
as a sum of two areas:
as a product of the length and width:

Explanation:

Step1: Calcular área del rectángulo oscuro

La fórmula del área de un rectángulo es $A = l\times w$. Para el rectángulo oscuro, $l = 7$ y $w = 3$, entonces $A=7\times3 = 21$.

Step2: Calcular área del rectángulo claro

Para el rectángulo claro, $l = 7$ y $w = x$, entonces $A = 7\times x=7x$.

Step3: Calcular área total como suma

Sumamos las áreas de los dos rectángulos: $21 + 7x$.

Step4: Calcular área total como producto

El ancho total es $3 + x$ y la altura es 7. Usando la fórmula del área de un rectángulo $A = l\times w$, tenemos $A=7\times(3 + x)=7(3 + x)$.

Answer:

(a) The dark rectangle (on the left): 21
The light rectangle (on the right): 7x
(b) As a sum of two areas: 21 + 7x
As a product of the length and width: 7(3 + x)