Answer:
∠C = 90°
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°, thus
6x + 2x + 4x = 180, that is
12x = 180 ( divide both sides by 12 )
x = 15
Hence
∠C = 6x = 6 × 15 = 90°
Answer:
Pythagoras theorem.
hypotenuse²=height²+base²
x²=15²+12²
x²=225+144
x²=329
x=329½
x=19.20
Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
<u>Algebra II</u>
- Distance Formula:

Step-by-step explanation:
<u>Step 1: Define</u>
Point (4, -8)
Point (7, -10)
<u>Step 2: Find distance </u><em><u>d</u></em>
Simply plug in the 2 coordinates into the distance formula to find distance <em>d</em>
- Substitute in points [DF]:

- (Parenthesis) Subtract/Add:

- [√Radical] Exponents:

- [√Radical] Add:
