Please help geometry? - prism 7 inch color portable
1. With twelve-meter board used as a ramp. The ramp has a slope of 30%.
(a). What is a gap of 30%, as a mark of 30%?
(b). How far from Earth is the extent of the ramp?
2. The edges of the base of a regular prism is 4 cm. The prism height 7 cm. Find the area and volume of the prism.
(a). everything that I need help .... u can be good ... very easy to unsterstand Thanks
Prism 7 Inch Color Portable Please Help Geometry?
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Friday, January 22, 2010
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4 comments:
1.
The degree of compliance is marketed as the percentage increase during the implementation of expression. So, no! Undergraduate degrees are not equal!
A right triangle and trigonometric functions give us the answer ...
The ramp is the hypotenuse = 12
The angle of the hypotenuse is the ground is 30 degrees.
The short arm of a 30-60-90 triangle 1 / 2 hypotenuse = 6 feet ... or the use of Trig ... sin (30 degrees) = height/12.
Rise = 6, length = 12 ... So the quality of 50% is
2. The volume of a solid is the base area * height
The base is an isosceles triangle with sides = 4, so that the height of the triangle is given by H ..
60 AS = h / 2 (you draw a bisector of one side of the triangle to see this). h = 2 root (3), then
V = [1 / 2 (4) * (2 * sqrt (3))] * 7 = 28 * sqrt (3)
The base area = two + three rectangular areas (4 * 7)
Thus, area = 3 * (4 * 7) + 2 * [1 / 2 (4) * (2 * sqrt (3))] =
84 + 8 root (3)
OK? If you want more, Plz. ask.
-Fred
lillyski .. Here:
http://s276.photobucket.com/albums/kk19/ ...
Right triangle
(L) ² = (Levante Board) ² + (F) ²
(F) ² = (L) ² - (Press Council) ²
(F) ² = (12) ² - (3.6) ²
R ² = 144-12.96
R ² = 131.04
F = 131.04 √
F = 11.45 m
-------------------------------------- ...
2. The edges of the base of a regular prism is 4 cm. The prism height 7 cm. Find the area and volume of the prism.
Surface
IMPORTANCE:
EDGE Base = 4
Height = 7
Area = 2 x (base) + 3 x (rectangle)
see diagram
Area = 2 x (area of triangle ABC)
There are 4 similar triangles ABC right (two at each end)
Area = 4 x (area of triangle ABC) + 3 x (rectangle)
Area = 4 x [1 / 2 (BC) x (AC)] + 3 x (X Edge base height)
BC = 1 / 2 (AC)
Area = 4 x (1 / 2 [1 / 2 (AC)] x (AC)) + 3 x (X Edge base height)
Area = 4 x (1 / 2 [1 / 2 (4)] x(4)) + 3 x (4 x 7)
Area = 16 + 84
===========================
Area = 100 sq in.
===========================
Volume:
Volume of a prism = area of base x height
Volume of a prism = 2 x (area of triangle ABC) x height
Volume of a prism = 2 x (1 / 2 [1 / 2 (AC)] x (AC)) x height
Volume of a prism = 2 x (1 / 2 [1 / 2 (4)] x (4)) x 7
Volume of a prism = 8 x 7
====================================== ...
Answer: The volume of the prism = 56 in ³
====================================== ...
Hope it helps
lillyski .. Here:
http://s276.photobucket.com/albums/kk19/ ...
Right triangle
(L) ² = (Levante Board) ² + (F) ²
(F) ² = (L) ² - (Press Council) ²
(F) ² = (12) ² - (3.6) ²
R ² = 144-12.96
R ² = 131.04
F = 131.04 √
F = 11.45 m
-------------------------------------- ...
2. The edges of the base of a regular prism is 4 cm. The prism height 7 cm. Find the area and volume of the prism.
Surface
IMPORTANCE:
EDGE Base = 4
Height = 7
Area = 2 x (base) + 3 x (rectangle)
see diagram
Area = 2 x (area of triangle ABC)
There are 4 similar triangles ABC right (two at each end)
Area = 4 x (area of triangle ABC) + 3 x (rectangle)
Area = 4 x [1 / 2 (BC) x (AC)] + 3 x (X Edge base height)
BC = 1 / 2 (AC)
Area = 4 x (1 / 2 [1 / 2 (AC)] x (AC)) + 3 x (X Edge base height)
Area = 4 x (1 / 2 [1 / 2 (4)] x(4)) + 3 x (4 x 7)
Area = 16 + 84
===========================
Area = 100 sq in.
===========================
Volume:
Volume of a prism = area of base x height
Volume of a prism = 2 x (area of triangle ABC) x height
Volume of a prism = 2 x (1 / 2 [1 / 2 (AC)] x (AC)) x height
Volume of a prism = 2 x (1 / 2 [1 / 2 (4)] x (4)) x 7
Volume of a prism = 8 x 7
====================================== ...
Answer: The volume of the prism = 56 in ³
====================================== ...
Hope it helps
lillyski .. Here:
http://s276.photobucket.com/albums/kk19/ ...
Right triangle
(L) ² = (Levante Board) ² + (F) ²
(F) ² = (L) ² - (Press Council) ²
(F) ² = (12) ² - (3.6) ²
R ² = 144-12.96
R ² = 131.04
F = 131.04 √
F = 11.45 m
-------------------------------------- ...
2. The edges of the base of a regular prism is 4 cm. The prism height 7 cm. Find the area and volume of the prism.
Surface
IMPORTANCE:
EDGE Base = 4
Height = 7
Area = 2 x (base) + 3 x (rectangle)
see diagram
Area = 2 x (area of triangle ABC)
There are 4 similar triangles ABC right (two at each end)
Area = 4 x (area of triangle ABC) + 3 x (rectangle)
Area = 4 x [1 / 2 (BC) x (AC)] + 3 x (X Edge base height)
BC = 1 / 2 (AC)
Area = 4 x (1 / 2 [1 / 2 (AC)] x (AC)) + 3 x (X Edge base height)
Area = 4 x (1 / 2 [1 / 2 (4)] x(4)) + 3 x (4 x 7)
Area = 16 + 84
===========================
Area = 100 sq in.
===========================
Volume:
Volume of a prism = area of base x height
Volume of a prism = 2 x (area of triangle ABC) x height
Volume of a prism = 2 x (1 / 2 [1 / 2 (AC)] x (AC)) x height
Volume of a prism = 2 x (1 / 2 [1 / 2 (4)] x (4)) x 7
Volume of a prism = 8 x 7
====================================== ...
Answer: The volume of the prism = 56 in ³
====================================== ...
Hope it helps
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