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Ivenika [448]
4 years ago
12

Find the area of the triangle whose base is 12 cm and height is 4 cm.

Mathematics
1 answer:
densk [106]4 years ago
6 0

Answer:

24 square cm

Step-by-step explanation:

area \: of \:  \triangle =  \frac{1}{2}  \times base \times height \\  =  \frac{1}{2}  \times 12 \times 4 \\  = 6 \times 4 \\  = 24 \:  {cm}^{2}  \\

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Step-by-step explanation:

4bc-b

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Solve the equation<br> 2x-3=15<br> A)x=6<br> B)x=9<br> C)x=24<br> D)x=36
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Refer to image below
il63 [147K]

Answer:

A ≈ 40°

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality<u> </u>

<u>Trigonometry</u>

  • [Right Triangles Only] SOHCAHTOA  
  • [Right Triangles Only] sinθ = opposite over hypotenuse<u> </u>

Step-by-step explanation:

<u>Step 1: Identify</u>

Angle θ = A

Opposite Leg = 27

Hypotenuse = 42

<u>Step 2: Solve for </u><em><u>A</u></em>

  1. Substitute [sine]:                                                                                             sinA = 27/42
  2. Simplify:                                                                                                           sinA = 9/14
  3. Trig inverse:                                                                                                    A = sin⁻¹(9/14)
  4. Evaluate:                                                                                                         A = 40.0052°
  5. Round:                                                                                                             A ≈ 40°
5 0
3 years ago
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