Lesson Plans and Worksheets
Browse by Subject
Tangents Teacher Resources
Find Tangents educational ideas and activities
Students use trigonometric functions to determine the area of regular polygons. In this pi lesson, students use trigonometric functions and double-angle formulas to determine the area of polygons circumscribed around and inscribed in circles. They use their graphing calculators to complete a worksheet. Students use computers and work with an applet to determine the area of polygons and identify the perimeter.
Students find the length of the arc of a circle. In this geometry lesson, students calculate the length of an arc and find the measure of the central angle given the length of the arc. They convert between linear and angular speed. They find the distance, given the speed, radius and time.
In this pi worksheet, students evaluate the curve of a quarter of a circle. They analyze the length of the curve, and explain that if the area under the curve is equal to pi, the length of the curve above is also equal to pi. Students convert a sum written in summation notation into a Riemann sum. Students compare two strategies for computing estimates of arc length.
Tenth graders define the properties of tangent and secant lines. In this circles lesson, 10th graders use two lines and a circle to find ways that they relate by illustrations. Students also investigate lines that intersect at the center and lines intersecting inside the circle but not at the center.
In this tangent lines worksheet, 10th graders solve and complete 13 various types of problems. First, they solve the right triangles for the variables shown. Then, students name a radius, a diameter, a tangent, a secant, a point of tangency and a chord in the circle illustrated.