Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
Related questions
Question
#10
Transcribed Image Text:Use Euler's Formula to find the number of vertices in the polyhedron with 80
faces, 6 rectangles and 2 hexagons.
A. 8
B. 12
C. 24
D. 18
DO
9. What is the surface area, in square centimeters, of a sphere with radius 5 cm?
A. 1000
A=47²r²
4(310)(5)
314.16
10. What is the ratio of the surface areas of similar solids whose similarity ratio is
3:5?
B. 500
3
C. 100
D. 314
A. 6: 10
B. 9:15
C. 9:25
D. 27: 125
11. Find the area of an equilateral triangle with side length of 30 ft.
A. 779.4 ft²
√3 3
B. 389.7ft2
C. 194.9 ft²
D. 405.6 ft²
Dram
A
12 Which solid has the least volume?
the least
w biosegent
=
V= 4
9.ni 8 10 Mgad bra
Sal 2.01
meer g
vihelime erit boil Br
10 in
00:52 8
389.71
Ka cube with edge 8 cm
V=9³=512
B-5 cylinder with height 8 cm and radius 5 cm = πr²h = 3,14 (5²X8)
V
a cone with height 8 cm and radius 6 cm
V=²= 301.59
D. a sphere with radius 4 cm
3r²³ = 1/² (3.14) (4³) = 2
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