Q2W5 GEO Unit 4 Study Guide #9-22

Topic 3:
Isosceles & Equilateral Triangles
#9-17

Math Response

9.) m∠Q= ___^o

^{[hint 1: base angles are congruent]}

^{[hint 2: angles of a triangle add to 180]}

Type answer here

Correct Answer: 32

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Rad

Math Response

9.) m∠R= ___^o

^{[hint 1: base angles are congruent]}

^{[hint 2: angles of a triangle add to 180]}

Type answer here

Correct Answer: 74

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Math Response

10.) m∠E= m∠G= ___^o

^{[hint 1: base angles are congruent]}

^{[hint 2: angles of a triangle add to 180]}

Type answer here

Correct Answer: 37

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Rad

Math Response

11.) m∠A= ___^o

^{[hint 1: base angles are congruent]}

^{[hint 2: angles of a triangle add to 180]}

Type answer here

Correct Answer: 84

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Math Response

11.) AC = ___ ft

^{[hint: isosceles triangles have congruent legs]}

Type answer here

Correct Answer: 9

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Math Response

12.) m∠M =m∠N =m∠P = ___^o

^{[hint: equiangular means all 3 angles are the same and have to add to 180]}

Type answer here

Correct Answer: 60

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Math Response

13.) set up the equation

Type answer here

Correct Answer: 8x-23=73

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Math Response

13.) x = ___

Type answer here

Correct Answer: 12

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Math Response

14.) set up the equation

^{[hint: equiangular means all 3 angles are the same and have to add to 180]}

Type answer here

Correct Answer: 9x-3=60

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Math Response

14.) x = ___

Type answer here

Correct Answer: 7

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Math Response

15.) set up the equation

[draw a picture!]

^{[hint: isosceles triangles have congruent legs]}

Type answer here

Correct Answer: 4x+9=16x-27

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Math Response

15.) x= ___

Type answer here

Correct Answer: 3

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Math Response

15.) CD= CE= ___

Type answer here

Correct Answer: 21

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Math Response

15.) DE= ___

Type answer here

Correct Answer: 16

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Math Response

16.) set up the equation

[draw a picture!]

^{[hint: equilateral means all 3 sides have equal measure]}

Type answer here

Correct Answer: 2x+17=4x-1

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Math Response

16.) x= ___

Type answer here

Correct Answer: 9

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Math Response

16.) QR=RS=QS= ___

Type answer here

Correct Answer: 35

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Math Response

17.) set up the equation

[draw a picture!]

^{[hint: isosceles triangles have congruent base angles]}

Type answer here

Correct Answer: 4x-1=9x-31

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Math Response

17.) x= ___

Type answer here

Correct Answer: 6

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Math Response

17.) m∠J= ___^o

Type answer here

Correct Answer: 134

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Math Response

17.) m∠K= m∠L=___^o

Type answer here

Correct Answer: 23

Deg^°

Rad