asaresuzana5 asaresuzana5

21-02-2022
Mathematics

contestada

the interior angles of a pentagon are 100°,×°,(3×+30)°,(2×-10)°,and 80°. Find ×

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nixonanyomi81 nixonanyomi81

21-02-2022

Step-by-step explanation:

Sum of the interior angles of a Pentagon = 540

Therefore, 100+x+(3x+30)+(2x-10)+80=540

100+x+3x+30+2x-10+80=540

Group like terms

x+3x+2x=540-100-30+10-80

6x=340

6x=340

6 6

x=56.6

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