Posted by:
Twerkey from Emporia State
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$7.00 Solution to first four problems
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- Posted on May 04, 2008 at 10:15:03PM
A:
Preview: ... ttached file for figures.
Suppose that the sum of the measures of the vertex
angles of a convex polygon is ...
The full tutorial is about 88 words long plus attachments.
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1-4.doc (39K) (Preview)
Posted by:
cxxliu from University of Wisconsin-Madison
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$39.00 All Questions Answered
- This tutorial hasn't been purchased yet.
- Posted on May 05, 2008 at 01:30:54PM
A:
Preview: ... angle
(b) as shown
(c) as shown
Q4
Use Pythagoras' theorem.
1743 * 1743 + 1828 * 1828 = 6379633
2525 * 2525 = 6375625
they are not the same.
Hence the triangle is not a right triangle.
Q5
(a)
sum of all angles = (20-2) x 180 = 3240 degrees
sum of each angle = 3240 / 20 = 162 degrees
(b)
sum of all angles = (37-2) x 180 = 6300 degrees
sum of each angle = 6300 / 37 = 170.27 degrees
Q6
(a) 4 times larger.
Let the radius of the original circle be r.
The area = pi * r * r
Radius of the doubled circle is 2r.
The area = pi * (2r) * (2r) = 4 * pi * r * r
= 4 * area of original circle.
(b) 25 times larger.
Radius of the new circle = 5r.
The area = pi * (5r) * (5r) = 25 * pi * r * r
= 25 * area of the original circle
(c) n*n times larger.
Radius of the new circle = nr.
The area = pi * (nr) * (nr) = (n*n) * pi * r * r
= (n*n) * area of the original circle
Q7
Attachment: Q7.gif
In the figure, Ac = 6cm and BD = 8cm.
Since the diagonals of a rhombus are perpendicular to each other,
angle AEB is 90 degrees.
Moreover, the diagonals of a rhombus bisect each other, therefore
BE = BD / 2 = 4cm.
Area of triangle ABC = (BE * AC) / 2 = (4 * 6) / 2 = 12 cm sq.
Similarly, area of triangle ADC = 12 cm sq.
Therefore, area of rhombus = 12 + 12 = 24 cm sq.
Q8
Attachment: Q7.gif (not Q8.gif)
In the figure, Ac = d1 an ...
The full tutorial is about 1223 words long plus attachments.
Attachments:
geom.zip (83K)
Posted by:
sudipta from IIM Bangalore
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$40.00 Full solution with exhaustive explanantions and all diagrams shown
- This tutorial was purchased 1 time and rated A+ by students like you.
- Posted on May 05, 2008 at 11:03:38PM
A:
Preview: ... olutions and the diagr ...
The full tutorial is about 21 words long plus attachments.
Attachments:
Geometry.doc (374K) (Preview)
