Unit 1: Day 1

Unit 1: Day 1

Daily Objective: Area of squares, rectangles, triangles, trapezoids, parallelograms, circles, and polygons. Define point, line, plane, line segment, ray, angle, median, altitude and perpendicular.

Definition: 

1. Area of a square: Length x Width

2. Area of a rectangle: Width x Height

3. Area of triangle: Base x Height divided by 2

4. Area of a trapezoid: Average width × Altitude

5. Area of a parallelogram: Base x Height 

6. Area of a circle: A = 3.14 x radius squared

7. Area of polygon: A = Perimeter x apothem divided by 2

1. Point - A precise location or place on a plane. Usually represented by a dot.

2. Line - A geometrical object that is straight, infinitely long and infinitely thin.

3. Plane - A flat surface that is infinitely large and with zero thickness.

4. Line segment - A straight line which links two points without extending beyond them.

5. Ray - A portion of a line which starts at a point and goes off in a particular direction to 

infinity.

6. Angle - A shape, formed by two lines or rays diverging from a common point (the vertex).

7. Median - The middle number in a sequence of numbers.

8. Altitude - The height of a given object. 

9. Perpendicular - A line is perpendicular to another if it meets or crosses it at right angles (90°).

Pictures: In this picture, it shows that when you multiply the base x the height that it will equal the given area which is true. 

3 question quiz:

#1. Whats the area of a square that has a length of 4' and a width of 3'?

#2. Whats the area of a triangle that has a base of 5' and a height of 2'?

#3. Whats the area of a circle with a diameter of 6'?

Answer Key: 

#1. 

#2. 

#3.