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Find the Area 11 in 7 in 8.1 in 15 in

Sagot :

Answer:

[tex]A_T=91in^2[/tex]

Explanation: We need to find the area of the given object, and as it can be seen that it can be thought of as composed of a square and a triangle, so if we could decompose it into a square and triangle and then find the area of these two shapes individually, then the final answer would be the sum of these two individual areas:

Area of Square:

A square can be extracted out of this image and it would have the dimensions of:

[tex]\begin{gathered} h=7\text{ in} \\ w=11\text{ in } \end{gathered}[/tex]

And therefore the area would be:

[tex]\begin{gathered} A_{square}=h\times w=7in\times11in=77in^2 \\ A_{square}=77in^2 \end{gathered}[/tex]

Area of Triangle:

Similarly, a triangle can be extracted from the overall shape, which has the dimensions of:

[tex]\begin{gathered} h=7in \\ b=(15-11)\text{ in=4in} \end{gathered}[/tex]

Similarly, the area would be:

[tex]\begin{gathered} A_{triangle}=\frac{1}{2}(h\times b)=\frac{1}{2}(7in\times4in)=\frac{28}{2}in^2=14in^2 \\ A_{triangle}=14in^2 \end{gathered}[/tex]

Finally, the total area would be:

[tex]A_T=A_{triangle}+A_{square}=14in^2+77in^2=91in^2[/tex]