Hey there!
A
is a solid consisting of a square, a point not in the same plane as the square, and all points between them.
It can't be these
Triangle means the plane of the figure that is formed by connecting 3 particular points but it is not in a straight line.
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![incorrect](https://img.qammunity.org/2019/formulas/mathematics/middle-school/qxseryebzkmcs8rap6pyydudvszj6qecs7.png)
Cube means the solid figure of having 6 square plane faces which that the angle between about 2 adjacent sides that is a right angle
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![incorrect](https://img.qammunity.org/2019/formulas/mathematics/middle-school/qxseryebzkmcs8rap6pyydudvszj6qecs7.png)
Square Prism means the shape of a square that has approximately 3 dimensional shape that has a rectangular sides and shape, but it has about 2 that are square
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![incorrect](https://img.qammunity.org/2019/formulas/mathematics/middle-school/qxseryebzkmcs8rap6pyydudvszj6qecs7.png)
Your answer is ↓
square pyramid
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![CORRECT!](https://img.qammunity.org/2019/formulas/mathematics/middle-school/8pm89qfruy9t1j6kaf6f73epv5ezywq1fi.png)
Good luck on your assignment and enjoy your day!
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