Answer:
Subtract the area of the semicircle from the area of the rectangle
Explanation:
Hi there!
1) Find the area of the rectangle
![A=lw](https://img.qammunity.org/2022/formulas/mathematics/high-school/tq6anc440zw98axml4fg8ykgl50tu6j7s1.png)
Plug in the given side lengths 10 and 8 and solve for the area of the rectangle. Disregard the semicircle.
2) Find the area of the semicircle
![A=\pi r^2](https://img.qammunity.org/2022/formulas/business/college/s1qqgnrpw62vud6pcbwbec5snrl2vnma0w.png)
Divide 8 by 2 to find the radius and solve for the area of the circle. Divide this by 2 to represent the semicircle.
3) Subtract the area of the semicircle from the area of the rectangle
![A_r_e_c_t_a_n_g_l_e-A_s_e_m_i_c_i_r_c_l_e=A_p_o_o_l](https://img.qammunity.org/2022/formulas/mathematics/high-school/sqzf7l2120z53eqbh8yktqtj1oirpcf9cd.png)
I hope this helps!