parniansaghi3 parniansaghi3

07-03-2021
Mathematics

contestada

1. In a triangle the ratio of two
angles is 5:7, and the
third
angle is 72º. What are the
measures of the unknown
angles?

Respuesta :

amipurple0613 amipurple0613

07-03-2021

Answer:

The unknown angles are 45 and 63

Step-by-step explanation:

5x + 7x + 72 = 180 (angle sum property)

12x + 72 = 180

12x = 180 - 72

12x = 108

x = 108/12

x = 9

Therefore, 5x = 5*9 = 45

7x = 7*9 = 63

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