Question

Solve it. please
it's urgent.........​

Answer 1

Answer:The angles are 88 deg., 55 deg., and 37 deg.

Step-by-step explanation: angle = a.

a. A + a. B + a.C = 180 deg. (Angle sum property)

a.A - a.B = 33 deg.

a. A = 33 deg. +a. B => 1

a.B - a.C = 18 deg.

a.C= a.B - 18 deg. => 2

Using 1 and 2 , we get:

33deg. a.B + a.B + a.B - 18 deg. = 180 deg.

3*a.B = 180deg - 33deg. +18 deg. = 165 deg.

a.B = 55 deg.

a.A = 33 deg.+ 55 deg. = 88 deg.

a.C = 55 deg. - 18 deg. = 37 deg.

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Answer 2

Answer:

a=88°

b=55°

c=37°

Step-by-step explanation:

by solving those equations we get.

a-2b+c=15

and we know that

a+b+c=180

by these two equations, we get

3b=165

b=55°

thus by substituting the value, we get

a=88°

c=37°