6.2 Special Right TrianglesJan 06, 2020 · 6.2 Special Right Triangles Learning target: I can use...
Transcript of 6.2 Special Right TrianglesJan 06, 2020 · 6.2 Special Right Triangles Learning target: I can use...
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6.2 Special Right Triangles
Learning target: I can use the relationships among the sides in special right triangles.
know 2 sides... ___________________
610
x
New know 1 side & "special" angles... Special Right ∆s "shortcuts"
x
y
x
y
In right ∆s, how to solve for sides given certain information
Review
* in notes*Do as w-up
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In a 45˚-45˚-90˚
45˚-45˚-90˚ TRIANGLE THEOREM
hypotenuse = leg • _____ leg = _____
Find the values of x and y in the 45˚-45˚-90˚ ∆
x
y
81. 2.
x = _____
y = _____
leg = leg
x = _____
y = _____
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Find the values of x and y in the 45˚-45˚-90˚ ∆3. 4.
x = _____
y = _____
leg = leg
x = _____
y = _____
_________ leg - opposite the 30˚ angle
_________ leg - opposite the 60˚ angle
30˚-60˚-90˚ TRIANGLE THEOREM
In a 30˚-60˚-90˚
hypotenuse = ____ • shorter leg
longer leg = shorter leg • _____
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Find the values of x and y in the 30˚-60˚-90˚ ∆5. 6.
x = _____
y = _____
x = _____
y = _____
Find the values of x and y in the 30˚-60˚-90˚ ∆
7. 8.
x = _____
y = _____
x = _____
y = _____
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leg = leg
HW: 6.2 Day 1 worksheet
Geo 6.2 Day 1 WS Answers
1. leg 2. short leg
leg short leg
3. x = 6 4. x = 7 5. x =
y = 6 2 y = 7 y =
6. x = 10 7. x = 8 8. x = 6
y = 5 3 y = 8 3 y = 12
9. x = 3 6 10. x = 2 6
y = 3 12 ** y = 18 **
11. x = 20 12. x = 6
13. B
8 28 2
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