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To find this simply do 5!, or 5×4×3×2×1. That equals 120,
9x because a negative subtracts from a positive
The triangle <span>pyramid</span> is made up of 4 triangles.
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Formula:
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Area of triangle = 1/2 x base x height
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Area of the bottom triangle:
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Area = 1/2 x 9 x 7.8
Area = 35.1 yd²
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Area of the 3 side triangles:
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Area = 3 [ 1/2 x 9 x 10 ]
Area = 135 yd²
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Total Area:
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Total Area = 135 + 35.1
Total Area = 170.1 yd²
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Answer: Surface Area = 170.1 yd².
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Answer:
65°
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtract Property of Equality
<u>Algebra I</u>
<u>Geometry</u>
- All angles in a triangle add up to 180°
Step-by-step explanation:
<u>Step 1: Set up equation</u>
n° + n° + 50° = 180°
<u>Step 2: Solve for </u><em><u>n</u></em>
- Combine like terms: 2n + 50 = 180
- Isolate <em>n</em> term: 2n = 130
- Isolate <em>n</em>: n = 65