Understanding Quadrilaterals: Symmetry, Congruence, and Area Calculations
Dive into the world of quadrilaterals and explore their properties, including line symmetry and congruence. This guide explains how to identify congruent shapes and distinguishes between parallel and perpendicular line segments. Learn to calculate perimeter and area effectively, both for simple and complex figures. With practical examples and step-by-step instructions, you’ll also find tips for determining missing dimensions. Sharpen your geometry skills and master the techniques needed for successful calculations in your studies.
Understanding Quadrilaterals: Symmetry, Congruence, and Area Calculations
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Presentation Transcript
WHICH SHAPES ARE CONGRUENT? not congruent congruent congruent not congruent
SORT AND NAME THE FIGURES parallel lines angle line segment perpendicular line segments ray line
Name the line segments, vertex points and angles Line segment:________ vertex point:________ angles: ________________ line segment: _______ vertex point: _______ angles: ________________ A B C D F G E H I
Perimeter How do you find the perimeter of a figure? P= l + w + l + w Find the perimeter of the figures? 7 cm 4 cm 3 cm P= 4 cm P= 6 cm 3 cm 2 cm P= 1 cm P=
AREA How do you calculate the area for figures? A = lxw 4 in 7 in A= 5 in 4 in A= 10 in A= 9 in 4 in A= 3 in
Complex Figures What are complex figures? How do I find the area and perimeter of a complex figure?
How do I find the perimeter? 7 in 3 in Perimeter: 34 in 6 in 2i n 3 in 2 in 5 in 6 in Perimeter: add up all the sides! P = 3in+7in+6in+2in+2in+6in+5in+3in
7 in How do I find the area? 3 in 6 in Area: 45 sq in 2i n 3 in 2 in 2 in 5 in 2 in 6 in 4 in Area: find the rectangles inside the shape, find the area of each rectangle (by multiplying), then add up all the rectangles 3 in 8 in 3 in
Find the missing dimensions. 2 ft 3 ft 5 ft 3 ft ft ft 2 ft
