Answer:
![43.5\ in^2](https://img.qammunity.org/2021/formulas/mathematics/middle-school/ilwnuxsrav0sqka5hovogvcqgj4t5r6p00.png)
Explanation:
An Inch or Inches (in plural) is an unit lenght. Its abbreviation can be:
or
![in](https://img.qammunity.org/2021/formulas/mathematics/middle-school/rdm469b1lhuc136pwbumo83t7ld0jy5dd1.png)
A Square inch or Square inches (in plural) is a unit of area and its abbreviation can be:
The given expression is:
![((1)/(2))(10\ in)(8.7\ in)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/rowpycb2f1k11pnnkc3ba2gqvu3d14l25a.png)
You can rewrite it in this form:
![((1)/(2))((10\ in)/(1))((8.7\ in)/(1))](https://img.qammunity.org/2021/formulas/mathematics/middle-school/uhjfzladuw9iqwlgkbddr3ucd21byjhkn1.png)
Then, you can follow these steps in order to solve it:
Step 1: Multiply the numerators (Remember that
).
Step 2: Multiply the denominators.
Step 3: Finally, divide the product in the numerator by the product in the denominator
Threfore, you get the following result:
![=((1)(10\ in)(8.7\ in))/(2*1*1)=(87\ in^2)/(2)=43.5\ in^2](https://img.qammunity.org/2021/formulas/mathematics/middle-school/ctktwzd09x15bk1lu0s546btefqhf0wbyn.png)