Answer:
![\large\boxed{h=5.488\ in}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/uk8izhpfgcwd09g267mhffbbhrmu6s9twu.png)
Explanation:
The formula of an area of a parallelogram:
![A=bh](https://img.qammunity.org/2020/formulas/mathematics/college/yuf6lcra082i9rwttsf9hghwp7q1fo1152.png)
b - base
h - height
We have:
base₁ = 9.8 in
base₂ = 10 in
height₁ = 5.6 in
height₂ = h
The area of a parallelogram:
and
![A=b_2h_2](https://img.qammunity.org/2020/formulas/mathematics/middle-school/olajsxijk3txu6zxc306401hl4gkhigw2s.png)
Therefore we have the equation:
![b_2h_2=b_1h_1](https://img.qammunity.org/2020/formulas/mathematics/middle-school/fexw27b0ljicv8kdv4nmzfbsa5hzx37z7j.png)
Substitute:
![10h=(9.8)(5.6)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/4sejwrni7w855ua66ou4l7kf33h335ldyf.png)
divide both sides by 10
![h=5.488\ in](https://img.qammunity.org/2020/formulas/mathematics/middle-school/z6gtubwt7rvlfwc4sv2n2d3yiy4btppyoi.png)