vicbreeze3
Answered

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Sagot :

jatinwrapstar

(5x + 15)⁰+ (3x - 3⁰) = 180⁰ ( same side on interior angle theorm)

(8x + 12)⁰= 180⁰

8x = 168⁰

x = 21

Angle 1 +( 3x - 3)⁰ = 180⁰⁰ ( linear pair)

Angle 1 + 63 - 3⁰ = 180⁰

Angle 1 + 60⁰ = 90⁰

Angle 1 = 180⁰- 60⁰

Angle 1 = 120⁰

siya90258

Answer:

(5x+15)°+(3x-3)°=180°(by co interior angle)

5x+3x+15 - 3=180°

8x+12=180°

8x=180°-12

8x=168°

x=168/8

x=21

by putting value of x

(3x-3)° = 3×21-3 = 60°

60°+angle 1 = 180°[by linear pair]

angle 1=180°-60°

angle 1=120°

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