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FE Exam visual sample · 6 pages · PDFs and ink stay on this device

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FE Exam
Made Visual

See the concept. Follow the calculator. Work the problem.

A = πd² ÷ 4
Engineer Mindset™ by Lisa Y. Frazier
Visual Lesson 01

How can a 1.5-inch diameter have an area of 1.767 square inches?

Press play to watch how the hydraulic piston moves.
2
Understand the picture

Diameter is a distance.
Area covers the face.

1.5 in
1.5 in measures straight across
1.767 in² covers the circular surface

Use the pen or highlighter to mark what you want to remember.

3
TI-36X Pro sequence

Enter the diameter, then calculate the circular area.

A = πd²4
  1. 1.5
  2. x²
  3. ×
  4. π
  5. ÷
  6. 4
  7. ENTER
Calculator result 1.767145868

Rounded: 1.767 in²

4
Work it with Interactive Ink™

Your turn

A circular piston has a diameter of 2 inches. Find its face area.

Formula
Substitute
Calculator entry
Final answer with units
5
The Engineer Mindset™ method

Read it.
Watch it.
Work it.
Remember it.

Visual engineering lessons and step-by-step calculator practice designed for learners who need to see why the formula works.

MyEngineerMindset.com
6

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