liamshilling
Answered

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please help quick, i dont understand this and its tue in 30 minutes

Please Help Quick I Dont Understand This And Its Tue In 30 Minutes class=
Please Help Quick I Dont Understand This And Its Tue In 30 Minutes class=

Sagot :

khalidzsarker010

Answer:

1st question: x = 17
2nd question: ∠A = 66°

Step-by-step explanation:

1st question-
all angles of a triangle adds up to 180. so,

(6x + 10) + (x + 17) + (4x - 34) = 180
6x + x + 4x + 10 + 17 - 34 = 180

11x -7 = 180
11x = 187

x = 187/11

x = 17

2nd question-

in an isosceles triangle, 2 of its angle are the same

here, ∠C & ∠B are equal

so,

180 - (57+57)

= 66°

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