lesson 6-5 righttriangles. ohio content standards:
TRANSCRIPT
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Lesson 6-5Lesson 6-5Right Right TrianglesTriangles
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Ohio Content Standards:
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Ohio Content Standards:Formally define geometric figures.
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Ohio Content Standards:Formally define and explain key aspects of geometric
figures, including:a. interior and exterior angles of polygons;
b. segments related to triangles (median, altitude, midsegment);
c. points of concurrency related to triangles (centroid, incenter, orthocenter, and circumcenter);
d. circles (radius, diameter, chord, circumference, major arc, minor arc, sector, segment, inscribed angle).
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Ohio Content Standards:Use right triangle trigonometric
relationships to determine lengths and angle measures.
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Ohio Content Standards:Apply proportions and right triangle
trigonometric ratios to solve problems involving missing lengths and angle
measures in similar figures.
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Hypotenuse
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Hypotenuse
In a right triangle, the side opposite the right angle.
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Legs
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Legs
The two sides that form the right angle.
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Legs
Hypotenuse
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Theorem 6-6 LL Theorem
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Theorem 6-6 LL Theorem
If two legs of one right triangle are congruent to the corresponding legs of another right triangle, then the triangles
are congruent.
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Theorem 6-7 HA Theorem
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Theorem 6-7 HA Theorem
If the hypotenuse and an acute angle of one right triangle are congruent to the hypotenuse and corresponding angle
of another right triangle, then the triangles are congruent.
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Theorem 6-8 LA Theorem
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Theorem 6-8 LA Theorem
If one leg and an acute angle of a right triangle are congruent to the
corresponding leg and angle of another right triangle, then the triangles are
congruent.
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Postulate 6-1 HL Postulate
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Postulate 6-1 HL Postulate
If the hypotenuse and a leg of one right triangle are congruent to the
hypotenuse and corresponding leg of another triangle, then the triangles are
congruent.
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Determine whether each pair of right Determine whether each pair of right triangles is congruent by LL, HA, LA, or triangles is congruent by LL, HA, LA, or
HL. If it is not possible to prove that they HL. If it is not possible to prove that they are congruent, write not possible.are congruent, write not possible.
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Determine whether each pair of right Determine whether each pair of right triangles is congruent by LL, HA, LA, or triangles is congruent by LL, HA, LA, or
HL. If it is not possible to prove that they HL. If it is not possible to prove that they are congruent, write not possible.are congruent, write not possible.
F
D
E
G
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Determine whether each pair of right Determine whether each pair of right triangles is congruent by LL, HA, LA, or triangles is congruent by LL, HA, LA, or
HL. If it is not possible to prove that they HL. If it is not possible to prove that they are congruent, write not possible.are congruent, write not possible.
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Determine whether each pair of right Determine whether each pair of right triangles is congruent by LL, HA, LA, or triangles is congruent by LL, HA, LA, or
HL. If it is not possible to prove that they HL. If it is not possible to prove that they are congruent, write not possible.are congruent, write not possible.
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Assignment:Assignment:
Pgs. 254-255 Pgs. 254-255 7-19 all, 7-19 all, 23-25 all23-25 all