
Approximate the area under a curve: trapezoids
Free printable Calculus math worksheet for "Approximate the area under a curve: trapezoids" — practice introduction to integration. No-prep, print or assign online.
This worksheet guides students through using trapezoids to approximate the area under a curve, reinforcing foundational concepts in numerical integration. Teachers can use it to introduce the trapezoidal rule as a practical method for estimating definite integrals, especially when dealing with non-analytic functions or discrete data. The exercises challenge students to apply, analyze, and interpret trapezoidal approximations, making it ideal for high school calculus classes focused on integration techniques.
Learning objectives
- Calculate the approximate area under a curve using the trapezoidal rule.
- Apply the trapezoidal method to estimate definite integrals from discrete data points.
- Analyze the accuracy of trapezoidal approximations compared to exact integral values.
Answer Key

How to use this worksheet
- Click “Download Worksheet” to get the PDF — free with a KiwiBee account (up to 50 downloads a month).
- Print at home or in class for High School; it's no-prep, with no extra materials needed.
- Use the included answer key to mark it in seconds.
Frequently asked questions
Is the “Approximate the area under a curve: trapezoids” worksheet free?
Yes. “Approximate the area under a curve: trapezoids” is a free printable Math worksheet. Sign in with a free KiwiBee account to download the PDF — it includes up to 50 downloads a month.
What grade or age is this Math worksheet for?
It's designed for High School (ages 14–18), covering Introduction to integration.
Does it come with an answer key?
Yes — a matching answer key is included so you can grade it in seconds.
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