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21 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Surface area |
Total area of the outside faces of a 3D figure |
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Plane figures |
A plane figure is a set of line segments all lying on a single plane |
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Equilateral triangle |
All sides are equal in length. Angles are also equal |
EQUAL-lateral |
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Isosceles triangle |
Exactly 2 sides are equal in length The 2 angles of opposite sides are equal |
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Scalene triangle |
No sides are equal in length and no angle are equal |
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Total degrees of all triangle |
Sum of all angles equal 180° |
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Right triangle |
One angle measures 90° |
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Acute triangle |
All angles measure less than 90° |
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Obtuse triangle |
One angle is greater than 90° |
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Name of the side directly across from right triangle |
Hypotenuse |
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Pythagorean theorem |
Use this theory to find the measure of a missing side of a right triangle |
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Steps to find hypotenuse |
Square both known sides then add them together then find the square root of the answer. |
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Steps to find unknown side |
If A or B is unknown square the one that is known along with the hypotenuse (c) subtract a/b from c finally square the answer and you will have the missing leg |
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Perimeter |
Is the distance around a figure. |
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How do you find perimeter? |
Add all sides |
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What is the area? |
The measure of space inside a flat figure |
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Circumference |
Is the perimeter or distance around a circle |
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Diameter |
Is the length across a circle |
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Radius |
Is half the diameter |
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Pi |
Is 3.14 |
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Volume |
Space inside a 3d figure |
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