SHAPE FORMULAS 1. RECTANGLE Perimeter = 2a + 20 Area =axb 2. PARALLELOGRAM Perimeter - 2a + 2b =axh Area 3. TRAPEZOID Perimeter = a + b+c+d Area = (a + bxh 2 b 4. TRIANGLE Perimeter = a +b+c Area =axh Perimeter = a +b+c+d = (divide into triangles) 5. TRAPEZIUM Area 6. CIRCLE Circumference = 2xr Area FIGURE 3.5 Perimeters and Areas of Plane Shapes (Delmar/Cengage Learring)

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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Calculate the perimeter and the area of the triangles with the following dimensions (refer to Figure 3.5):
a = 10'0" a = 2750 mm
b = 9'6" b = 2050 mm
c = 3'0" c = 300 mm
h = 2'0" h = 600 mm

SHAPE
FORMULAS
1. RECTANGLE
Perimeter = 2a + 20
Area
=axb
2. PARALLELOGRAM
Perimeter - 2a + 2b
=axh
Area
3. TRAPEZOID
Perimeter = a + b+c+d
Area
= (a + bxh
2
b
4. TRIANGLE
Perimeter = a +b+c
Area
=axh
Perimeter = a +b+c+d
= (divide into
triangles)
5. TRAPEZIUM
Area
6. CIRCLE
Circumference = 2xr
Area
FIGURE 3.5 Perimeters and Areas of Plane Shapes
(Delmar/Cengage Learring)
Transcribed Image Text:SHAPE FORMULAS 1. RECTANGLE Perimeter = 2a + 20 Area =axb 2. PARALLELOGRAM Perimeter - 2a + 2b =axh Area 3. TRAPEZOID Perimeter = a + b+c+d Area = (a + bxh 2 b 4. TRIANGLE Perimeter = a +b+c Area =axh Perimeter = a +b+c+d = (divide into triangles) 5. TRAPEZIUM Area 6. CIRCLE Circumference = 2xr Area FIGURE 3.5 Perimeters and Areas of Plane Shapes (Delmar/Cengage Learring)
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