Answer:
45)
![km^2](https://img.qammunity.org/2022/formulas/mathematics/college/7o0p6jreue9ol6t86rgybwzauujmpiue3f.png)
46)
![km^2](https://img.qammunity.org/2022/formulas/mathematics/college/7o0p6jreue9ol6t86rgybwzauujmpiue3f.png)
Explanation:
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The formula to find the area of a triangle is
where
stands for the base and
stands for the height.
So, let's solve and find out the answer.
--------------->>>>
45)
![A=(1)/(2)(11)(6.5)](https://img.qammunity.org/2022/formulas/mathematics/college/mttlz0ncwcaezd24q22hq07e6dw2ozt9gn.png)
![A=(1)/(2)(71.5)](https://img.qammunity.org/2022/formulas/mathematics/college/xmu9gzrxwc1v0o6up3c7luhwy6m8wlfyhd.png)
![A=35.75](https://img.qammunity.org/2022/formulas/mathematics/college/1intj937i784hd7bq0rh25npj7jwlxlmx6.png)
The area of this triangle is
![km^2](https://img.qammunity.org/2022/formulas/mathematics/college/7o0p6jreue9ol6t86rgybwzauujmpiue3f.png)
--------------->>>>
46)
![A=(1)/(2) (10)(4.9)](https://img.qammunity.org/2022/formulas/mathematics/college/u09zolcivhds6bepd8yuiizwzcued2aycb.png)
![A=(1)/(2) (49)](https://img.qammunity.org/2022/formulas/mathematics/college/x9qpfnnp581adgg5jqynb7ldvywj282zst.png)
![A=24.5](https://img.qammunity.org/2022/formulas/mathematics/college/yg9vt58w0wzc6oy23v0fgn7whsici316lo.png)
The area of this triangle is
![km^2](https://img.qammunity.org/2022/formulas/mathematics/college/7o0p6jreue9ol6t86rgybwzauujmpiue3f.png)
------------------------------
Hope this is helpful