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Geometry - Unit 5 Review
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Terms in this set (34)
What is the Pythagorean Theorem formula?
When can you use the Pythagorean Theorem?
- there is a right triangle
- 2 side lengths are known
Solve for the missing side of a right triangle if...
A = 5
B = 12
C = ?
c = 13
Solve for the missing side of a right triangle if...
A = 4
B = ?
C = 8
b = 4√3
An equilateral triangle has a side length of 10 inches. What is the area of the triangle in simplest radical form?
A = 25√3
What is the distance formula?
Find the distance between points A and B if they have coordinates A(2, 3) and B(14, 12).
d = 15
Find the distance between the points (1, 5) and (3, 11) in simplest radical form.
d = 2√10
Find the distance between points (4, 1) and (-2, 10) in simplest radical form.
d = 3√13
Figure out if triangle ABC with coordinates A(-3, 8), B(-9, 0), and C(5, 2) is isosceles.
it is isosceles!
AB = 10
AC = 10
What is the midpoint formula?
Use the distance formula to prove that P is the midpoint of MN.
M (2, 3)
P (10, 9)
N (18, 15)
it is!
MP = 10
PN = 10
The average of the x-values & the average of the y-values for 2 points is always...
the midpoint coordinates
Find the midpoint of these points: (-5, 7) and (9, 15)
(2, 11)
Find the midpoint of these points: (-8, 12) and (5, 4)
(- 3/2, 8)
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