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Luden [163]
2 years ago
12

Geometry help I NEED ASAP ( see picture).

Mathematics
1 answer:
Nikitich [7]2 years ago
7 0

8π is the circumference

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DUPLICATE. WITH ATTACHMENTS
Inessa05 [86]
7.) Area of a square pyramid is given by A = s^2 + 2sl; where s is the side length of the base and l is the slant height.
Area of given pyramid = 4^2 + (2 x 4 x 7) = 16 + 56 = 72 ft^2

8.) Area of the given pyramid is the area of the hexagonal base plus the area of the six slant triangles.
Area of hexagonal base = (3sqrt(3))/2 x 10^2 = 150 x 1.732 = 259.8
Area of the 6 traingles = 6(1/2 x 10 x 13) = 6 x 65 = 390
Total surface area of the pyramid = 259.8 + 390 = 649.8 ≈ 650 m^2

9.) Using pythagoras rule, the slant height is sqrt(6^2 + 3.5^2) = sqrt(36 + 12.25) = sqrt(48.25) = 6.9 mm

10.) The surface area of a cone is given by πr^2 + πrl
Area = π x 6^2 + π x 6 x 20 = 36π + 120π = 490.1 cm^2

11.) l = sqrt(r^2 + h^2) = sqrt(11^2 + 16^2) = sqrt(121 + 256) = sqrt(377) = 19m
6 0
2 years ago
Somebody please help 9 through 16
MissTica
Try to find the best domnatior and then do the mixed number then simplify
8 0
3 years ago
What is the equation of the line represented by the table of values?
Shkiper50 [21]
The answer is c. y=x-2 i believe 
7 0
3 years ago
If a polynomial function f(x) has roots 3+
irinina [24]

Answer:

Step-by-step explanation:

3+√5 is a root.

so 3-√5 is also a root

or (x-(3-√5)) is also a factor of f(x)

7 0
3 years ago
Factorise a squared - b squared
marusya05 [52]
(a-b)(a+b) because when you reverse the sum you do axa and ax-b xx
5 0
3 years ago
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