Question

[c
In a ABC, A is four times to B and c
five times to B. Find The
Three
angles.​

Answer 1

Answer:

A=80° B=0° C=100°

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Answer 2

Answer:

72 degree, 18 degree, 90 degree

Step-by-step explanation:

a= 4b, c= 5b

By angle sum property of a triangle,

$a + b + c = 180^{0} \\ = > 4b + b + 5b = 180^{0} \\ = > 10b = 180^{0} \\ = > b = \frac{180^{0} }{10} \\ = > b = 18^{0}$

a=4b=4×18 degree = 72 degree

b=18 degree

c=5×18 degree=90 degree.

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