2 D AND 3 D SHAPES & FORMULAS MYP 2 E.O.G. Prep THIS TIME IS TO BE TAKEN SERIOUSLY. Attendance to Finally Friday is partically dependenr on your behavior.

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Presentation transcript:

2 D AND 3 D SHAPES & FORMULAS MYP 2 E.O.G. Prep

THIS TIME IS TO BE TAKEN SERIOUSLY. Attendance to Finally Friday is partically dependenr on your behavior and work in the AE class in the afternoon.

2 D AND 3 D SHAPES & FORMULAS

Click on the link. Area and Perimeter of a Triangle

2 D AND 3 D SHAPES & FORMULAS CLICK ON THIS LINK Squares and rectangles Perimeter is the distance around a figure. For a rectangle or square, we can find the perimeter using two procedures: Using addition: (l + l) + (w + w). Add the length and its opposite side. Add the width to its opposite. Find the sum of the lengths and widths. For a square use (s+s+s+s). Using multiplication: (l x 2) + (w x 2). Multiply the length by 2. Multiply the width by 2. Find the sum of the products. For a square use 4 s because all the sides are congruent. Area is the number of square units inside a retangle or square. Area is found by multiplying the length by the width or side by side in the case of a square. A = l x w A = s x s

2 D AND 3 D SHAPES & FORMULAS A trapezoid is a 4-sided flat shape with straight sides that has a pair of opposite sides parallel. The Perimeter is the sum of all side lengths: Perimeter = a+b+c+d gG4http:// gG4 Click on this link

2 D SHAPES AND FORMULAS CLICK ON THIS LINK Perimeter of a Trapezoid The Perimeter is the distance around the edges. Example: A trapezoid has side length of 5 cm, 12 cm, 4 cm and 15 cm, what is its Perimeter? Perimeter = 5 cm + 12 cm + 4 cm + 15 cm = 36 cm Area of a Trapezoid The Area is the average of the two base lengths times the altitude A = (a + b) X h 2

2 D AND 3 D SHAPES & FORMULAS

CIRCUMFERENCE The circumference of a circle is the distance around the outside of the circle. It could be called the perimeter of the circle. How to find the circumference of a circle: The circumference of a circle can be found by multiplying pi ( π = 3.14 ) by the diameter of the circle. If you know the radius, the diameter is twice as large.

2 D AND 3 D SHAPES & FORMULAS arv4http:// arv4Click on this link.

2 D AND 3 D SHAPES & FORMULAS GQIhttp:// GQI Click on this link

NTHwhttp:// NTHw Click on this link 2 D and 3 D Shapes & Formulas

Surface area of a rectangular prism B3nchttp:// B3nc Click on this surface area link E8tuMaDxgJMhttp:// E8tuMaDxgJM Click on this link Volume of a rectangular prism

2 D AND 3 D SHAPES & FORMULAS

1NM&NR=1&feature=endscreenhttp:// 1NM&NR=1&feature=endscreen Click on this surface area part1link ure=iv&src_vid=Aigefhb-1NM&v=T6VxjB7bS5ohttp:// ure=iv&src_vid=Aigefhb-1NM&v=T6VxjB7bS5o Click on this surface area part 2 link Click on this volume link 2 D and 3 D Shapes & Formulas

2 D AND 3 D SHAPES & FORMULAS