skysky21 skysky21

21-11-2016
Mathematics

Answered

Each face of a pyramid is an isosceles triangle with a 74° vertex angle. What are the measures of the base angles?

Verified Answer :

rybag99 rybag99

21-11-2016

53 degrees at each angle

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mozarth11 mozarth11

21-11-2016

Os ângulos da base são congruentes...
A soma dos ângulos internos do triângulo é 180º
x + x + 74 = 180
2x = 180 - 74
2x = 106
x = 106/2
x = 53º (ângulos da base)

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