Stephen Ohler, Mathematics Teacher at Yough High School, Numerade Educator

Biography

My name is Steve Ohler and I have been teaching Algebra I, Algebra II, and Geometry to high school students for the past 15 years. During this time I have also earned my Master's degree in Curriculum and Instruction with an emphasis on Technology. I am also currently pursuing my principal's certification.

Prior to becoming a high school teacher, I worked at a tutoring center for several years where I worked with students of all ages in a variety of mathematical courses from basic math to Calculus.

I am married with 3 children (15, 12, and 9 years old) and I enjoy spending time with my family and playing/watching sports.

Educator Statistics

Numerade tutor for 6 years

2 Students Helped

02:40

Geometry

Isosceles triangles have two equal sides and two equal angles. Equilateral triangles have three equal sides and three equal angles. Quadrilaterals have an interior angle sum of 360 degrees. Regular polygons have all sides equal and all angles equal. The sum of the angles of a regular polygon can be found using (n - 2) * 180. The number of diagonals of any polygon can be found using n (n - 3) / 2. Concave polygon has one or more diagonals with points outside the polygon. Convex polygon has all interior angles less than 180 degrees.

Exercises:
1. Triangle ABC is isosceles with the measure of ∠A = 30°
What is the measure of ∠ACD?
2. How many degrees in each angle of a regular hexagon? a regular octagon?
3. How many diagonals in a pentagon? an octagon? a decagon?
4. Solve for the missing angle (not drawn to scale)