Respuesta :

Answer:

150

Step-by-step explanation:

A=B*H/2

A=15*20/2

A=300/2

A=150

Ignore the hypotenuse btw

Space

Answer:

C - 150 mm²

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

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

Geometry

  • Area of a Triangle: A = 1/2bh

Step-by-step explanation:

Step 1: Define Variables

Base b = 15 mm

Height h = 20 mm

Step 2: Find Area A

  1. Substitute [T Area Formula]:                    A = 1/2(15 mm)(20 mm)
  2. Evaluate Multiplication:                            A = 1/2(300 mm²)
  3. Evaluate Multiplication:                            A = 150 mm²

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