# Circle area formula

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★♥★ #Circle Facts ★♥★ Learn some interesting information about this two…

An interesting way of explaining the relationship between the area and circumference of a circle!

### Gifs que explican cómo funcionan las cosas

For .gifs that provide knowledge! • /r/educationalgifs

### Circle Area Middle School Math Stations

Students will use their higher-order thinking skills to discover and apply their knowledge of circle area. There are four math stations that focus on discovering the formula for the area of a circle, calculating circle area using both exact and approximate answers, analyzing the change of area as connected to the change of radius, and geometric circle areas.

### 3 Pi Day activities (and 10 Pi Day Facts)

To celebrate Pi Day, I created three fun activities that let kids get artsy while not losing a day of learning. That one above is a Pi Day Pennant for middle and high school students with area and circumference problems and fun pi facts on each pennant. Some of the circle problems ask students to combine their understanding of the two circle formulas by finding area given circumference, for example. A fun challenge!

Area of Circle, Triangle, Square, Rectangle, Parallelogram, Trapezium, Ellipse and Sector

The following common geometry formulas are very useful when solving problems about two-dimensional figures. In the table below “b” stands for base, “h” means height, “L” stands for length, “w” represents the width, “r” is the radius of a circle, and “d” represents the diameter.

### Pi Day Pennant

In this collaborative activity celebrating Pi Day, students work with the circle formulas to find area, circumference, radius and diameter. Each pennant also includes a Fun Fact that students can read as they complete their circle problems. Once a pennant is complete, it can be hung along a string in your classroom to celebrate Pi Day!

### Circumference and Area of a Circle Mistory Lib Activity

Similar to a "mad lib" activity but with a math and history component. In this activity students will determine the area and circumference of circle when given a radius or diameter to complete an unfinished story about the life of Albert Einstein. What's Included: A worksheet with 10 problems An unfinished story page A student reference sheet with formulas An answer key for teachers Be sure to download the preview page for a sneak peek inside this resource!Links to Additional…