Jbandzzzz Jbandzzzz

16-12-2020
Mathematics

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Plzzzzz help it's an exam !!! In triangle HIJ, m

Plzzzzz help its an exam In triangle HIJ m class=

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sofiahemed22 sofiahemed22

16-12-2020

Answer:

84

Step-by-step explanation:

(3× + 12)+ (5× +9) +(2× +9) = 180degrees

10× + 30 = 180

10× = 180-30

× = 15

5×15+9 = 84

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