Geometry - ACT Math
Card 0 of 65
What is the formula for the area of a parallelogram?
What is the formula for the area of a parallelogram?
$A = bh$ where $b$ is the base and $h$ is the perpendicular distance between bases
$A = bh$ where $b$ is the base and $h$ is the perpendicular distance between bases
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A circle has radius $5$. Find the circumference.
A circle has radius $5$. Find the circumference.
$10\pi$ ($C = 2\pi(5) = 10\pi$)
$10\pi$ ($C = 2\pi(5) = 10\pi$)
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What is the formula for the volume of a rectangular prism?
What is the formula for the volume of a rectangular prism?
$V = lwh$ where $l$ is length, $w$ is width, $h$ is height
$V = lwh$ where $l$ is length, $w$ is width, $h$ is height
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A rectangular prism has dimensions $5 \times 3 \times 4$. Find the volume.
A rectangular prism has dimensions $5 \times 3 \times 4$. Find the volume.
$60$ cubic units ($V = 5 \times 3 \times 4 = 60$)
$60$ cubic units ($V = 5 \times 3 \times 4 = 60$)
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What are supplementary angles?
What are supplementary angles?
Two angles whose measures add to $180°$
Two angles whose measures add to $180°$
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What is the slope of a vertical line?
What is the slope of a vertical line?
Undefined (division by zero; all rise, no run)
Undefined (division by zero; all rise, no run)
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A right triangle has legs of length $3$ and $4$. Find the hypotenuse.
A right triangle has legs of length $3$ and $4$. Find the hypotenuse.
$5$ ($3^2 + 4^2 = 9 + 16 = 25 = 5^2$)
$5$ ($3^2 + 4^2 = 9 + 16 = 25 = 5^2$)
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What is the formula for the area of a rectangle?
What is the formula for the area of a rectangle?
$A = lw$ where $l$ is length and $w$ is width
$A = lw$ where $l$ is length and $w$ is width
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Two angles are supplementary. One angle measures $120°$. Find the other angle.
Two angles are supplementary. One angle measures $120°$. Find the other angle.
$60°$ ($180° - 120° = 60°$)
$60°$ ($180° - 120° = 60°$)
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A trapezoid has bases $8$ and $12$, and height $5$. Find the area.
A trapezoid has bases $8$ and $12$, and height $5$. Find the area.
$50$ square units ($A = \dfrac{1}{2}(8 + 12)(5) = \dfrac{1}{2}(20)(5) = 50$)
$50$ square units ($A = \dfrac{1}{2}(8 + 12)(5) = \dfrac{1}{2}(20)(5) = 50$)
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What is the formula for the area of a triangle?
What is the formula for the area of a triangle?
$A = \dfrac{1}{2}bh$ where $b$ is the base and $h$ is the height
$A = \dfrac{1}{2}bh$ where $b$ is the base and $h$ is the height
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What is the slope of a horizontal line?
What is the slope of a horizontal line?
$0$ (no rise, all run)
$0$ (no rise, all run)
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In a $45°$-$45°$-$90°$ triangle, each leg has length $5$. Find the hypotenuse.
In a $45°$-$45°$-$90°$ triangle, each leg has length $5$. Find the hypotenuse.
$5\sqrt{2}$
$5\sqrt{2}$
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A circle has diameter $8$. Find the area.
A circle has diameter $8$. Find the area.
$16\pi$ (radius $= 4$, so $A = \pi(4)^2 = 16\pi$)
$16\pi$ (radius $= 4$, so $A = \pi(4)^2 = 16\pi$)
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Find the slope of the line through $(2, 3)$ and $(6, 11)$.
Find the slope of the line through $(2, 3)$ and $(6, 11)$.
$2$ ($m = \dfrac{11 - 3}{6 - 2} = \dfrac{8}{4} = 2$)
$2$ ($m = \dfrac{11 - 3}{6 - 2} = \dfrac{8}{4} = 2$)
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What is the formula for the perimeter of a rectangle?
What is the formula for the perimeter of a rectangle?
$P = 2l + 2w$ or $P = 2(l + w)$
$P = 2l + 2w$ or $P = 2(l + w)$
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What are vertical angles?
What are vertical angles?
Opposite angles formed when two lines intersect; they are always equal
Opposite angles formed when two lines intersect; they are always equal
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What is the sum of the interior angles of a triangle?
What is the sum of the interior angles of a triangle?
$180°$
$180°$
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A cylinder has radius $3$ and height $10$. Find the volume.
A cylinder has radius $3$ and height $10$. Find the volume.
$90\pi$ ($V = \pi(3)^2(10) = 90\pi$)
$90\pi$ ($V = \pi(3)^2(10) = 90\pi$)
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What is the formula for the volume of a cylinder?
What is the formula for the volume of a cylinder?
$V = \pi r^2 h$ where $r$ is radius and $h$ is height
$V = \pi r^2 h$ where $r$ is radius and $h$ is height
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