Formula: Area of a Parallelogram Formula: Perimeter of a ......Geo (H) 11.1 Areas of Parallelograms...
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Geo (H) 11.1 Areas of Parallelograms & Triangles.notebook 11.1 Areas of Parallelograms and Triangles Objecve: 1. You will be able to find perimeters and areas of parallelograms. 2. You will be able to find perimeters and areas of triangles. When using formulas . . . 1. State the formula you will be using for the parcular problem. 2. Idenfy all knowns and unknowns. 3. Substute knowns and unknowns into the formula. 4. Solve for the unknown. 5. Check and declare answer. *Remember to pay aenon to rounding rules and to include necessary labels. Base Height Base Height Base Height Perimeter of a Parallelogram : Formula: Area of a Parallelogram : Formula: Parallelograms and their heights (altudes) can have mulple appearances, sketch the ways that can appear: Perimeter of a Triangle : Formula: Area of a Triangle : Formula: Triangles and their heights (altudes) can have mulple appearances, sketch the ways that can appear: Base Height Base Height Base Height Length Length Width Length Width Width **Remember that the base and height will ALWAYSform a right angle!
Transcript of Formula: Area of a Parallelogram Formula: Perimeter of a ......Geo (H) 11.1 Areas of Parallelograms...
Geo (H) 11.1 Areas of Parallelograms & Triangles.notebook
11.1 Areas of Parallelograms and TrianglesObjecve: 1. You will be able to find perimeters and areas of parallelograms.2. You will be able to find perimeters and areas of triangles.
When using formulas . . . 1. State the formula you will be using for the parcular problem.2. Idenfy all knowns and unknowns.3. Substute knowns and unknowns into the formula.4. Solve for the unknown.5. Check and declare answer. *Remember to pay aenon to rounding rules and to include necessary labels.
Base
Height
Base
Height
BaseHeight
Perimeter of a Parallelogram: Formula:
Area of a Parallelogram: Formula:Parallelograms and their heights (altudes) can have mulple appearances, sketch the ways that can appear:
Perimeter of a Triangle: Formula:
Area of a Triangle: Formula:Triangles and their heights (altudes) can have mulple appearances, sketch the ways that can appear:
Base
Height
Base
Height
Base
Height
Length Length
Width
Length
Width
Width
**Remember that the base and height will ALWAYS form a right angle!
Geo (H) 11.1 Areas of Parallelograms & Triangles.notebook
Example 1:
A parallelogram has a perimeter of 80 inches. If the length is 22 inches, what is the parallelogram’s width?
Example 2:
Find the area of the parallelogram.
Example 3:
Solve for the area of FGHI.
Geo (H) 11.1 Areas of Parallelograms & Triangles.notebook
Example 4:
What is the height of a triangle whose area is 36 in2 and whose perpendicular base is 12 in.?
Example 6:
Find the base and height of a triangle with the given characteriscs. Given answers in exact radical form when appropriate.
The height is twice the base. The area of the triangle is the same as the area of a parallelogram with a height of 7 inches and a base of 12 inches.
Example 5:
A parallelogram has an area of 80 square feet and a perimeter of 50 feet. The length of the parallelogram is 7 feet longer than the width. Solve for the height of the parallelogram.
Geo (H) 11.1 Areas of Parallelograms & Triangles.notebook
Pracce:
11.1 p.783
#11,12,22,24,26,28,42‐45
Geo (H) 11.1 Areas of Parallelograms & Triangles.notebook
18 tan40
18 tan40
