The area is the space used by a two-dimensional object.
The area of the given figure is 66.5 square cm.
How do you calculate the area of the given object?
Given that the object has a base b of 7 cm, height h of 11 cm and length l is 8 cm.
To calculate the area of the given object, let us divide the object into two parts. The attachment shows the resultant object which has two parts, a rectangle whose length and width are 8 cm and 7 cm and a triangle whose base is 7 cm and height is 3 cm.
The total surface area of the object is sum of the surface area of rectangle and area of triangle.
The area of rectangle is given below.
[tex]A (\rm Rectangle) = l\times w[/tex]
[tex]A (\rm Rectangle ) = 8\times 7[/tex]
[tex]A (\rm Rectangle ) = 56 \;\rm cm^2[/tex]
The area of the triangle is given below.
[tex]A (\rm Triangle) = \dfrac {1}{2}\times b\times h[/tex]
[tex]A (\rm Triangle) = \dfrac {1}{2}\times 7\times 3[/tex]
[tex]A (\rm Triangle) = 10.5 \;\rm cm^2[/tex]
The total area of the object is given below.
Area A = A (Rectangle) + A (Triangle)
[tex]A = 56 +10.5[/tex]
[tex]A = 66.5 \;\rm cm^2[/tex]
Thus, the total surface area of the object is 66.5 square cm.
To know more about the area, follow the link given below.
https://brainly.com/question/1631786.
