bayan00 bayan00

17-10-2021
Mathematics

contestada

Calculate the size of the unknown angle in this polygon.

Calculate the size of the unknown angle in this polygon class=

Respuesta :

joe47755 joe47755

17-10-2021

Answer:

b=70

Step-by-step explanation:

(5-2)180=540

540-83-225-84-78=70

Answer Link

Vitor23 Vitor23

17-10-2021

Answer:

70

Step-by-step explanation:

By adding all the angles, we get 470.

If we use the formula 180(n-2), where n is the number of sides, we get

180(5-2)

=180(3)

=540

540-470=70

Answer Link

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