Quadrilaterals & Triangles

The sum of the interior angles of a quadrilateral is ...

A square has a side length of $5\text{cm}$. Its perimeter is ...

A rectangle measures $8\text{cm}\times 5\text{cm}$. Its area is ...

A triangle has a base of $10\text{cm}$ and a height of $6\text{cm}$. Its area is ...

A plane figure with four equal sides and four $90^{\circ }$ angles is a ...

A plane figure with four equal sides but angles not necessarily $90^{\circ }$ is a ...

A rectangle has length $12\text{cm}$ and width $7\text{cm}$. Its perimeter is ...

A square has a side length of $9\text{cm}$. Its area is ...

A triangle has a base of $14\text{cm}$ and a height of $9\text{cm}$. Its area is ...

A parallelogram has a base of $12\text{cm}$ and a height of $8\text{cm}$. Its area is ...

A trapezoid has parallel sides of $8\text{cm}$ and $12\text{cm}$ and a height of $5\text{cm}$. Its area is ...

A rhombus has diagonals of $12\text{cm}$ and $16\text{cm}$. Its area is ...

The perimeter of a rectangle is $40\text{cm}$. If its length is $12\text{cm}$, its width is ...

An equilateral triangle has a side length of $7\text{cm}$. Its perimeter is ...

The area of a square is $144{\text{cm}}^2$. Its perimeter is ...

The area of a rectangle is $96{\text{cm}}^2$. If its length is $12\text{cm}$, its perimeter is ...

The area of a triangle is $60{\text{cm}}^2$. If its base is $12\text{cm}$, its height is ...

A trapezoid has area $72{\text{cm}}^2$ and height $6\text{cm}$. If one parallel side is $8\text{cm}$, the other parallel side is ...

A rectangle has length $3x$ and width $x$. If its area is $108{\text{cm}}^2$, its perimeter is ...

A figure is made of a $10\text{cm}\times 6\text{cm}$ rectangle and a triangle with base $10\text{cm}$ and height $4\text{cm}$. The area of the figure is ...