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A=base edge
H=height
Surface area
Lateral area: 1/2 Ph
Lateral area: 1/2 (27.5) (7.5)
Lateral area: 103.125cm^2
total: 1/2 Pl+B
total: 1/2 (27.5) (7.5)+(1/2 aP)
total: 103.125+ 1/2 (2.75)(27.5)
total:103.125+37.8125
total:140.9375cm^2
Pentagonal Pyramid
Triangle
Pentagon
yeah but thats called cross sections, what is slide 9 for then?
Volume of a Cylinder
Lateral Surface Area
V= πr^2h
V=π(4.1)^2 (14.5)
V=π(16.81)(14.5)
V=771.03
cm
Volume: 1/3 Bh
V: 1/3(1/2)(2.75)(27.5) 7.5
V: 94.53cm^3
A=2πrh
A=2π(4.1)(14.5)
A=373.54
A=2πrh+2πr2
A=2π4.1h+2π4.1(2)
A=2π4.1(14.5)+2π4.1(2)
A≈479.16
Total Surface area=2πrh+2πr2
Lateral Area= 2πrh
Volume (V)=πr2h
radius of circle:8.2 cm
Height of Rectange:14.3
a pentagonal pyramid has a pentagonal base upon which are erected five triangular faces that meet at a point (the vertex).