Question

expreciones algebraica xfaaaa con procedimiento :(((((
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Answer 1

Explicación paso a paso:

a.

2x + 3x = 90°

5x = 90°

x = 18°

b.

x+10 + 2x-30 = 90

3x - 20 = 90

3x = 110°

x = 36,66...

c.

2x + 4x + 10 + 4x + 10 = 180

10x + 20 = 180

10x = 160

x = 16°

d.

5x + 4x + 5 + 7x - 10 = 180

16x - 5 = 180

16x = 185

x = 11,5625°

Calcula el valor de los ángulos internos y externos del triangulo.

A + B + C = 360°

2x + 5x + 3x + 10 = 180

10x = 170°

x = 17°

Ángulos internos :

2x = 34°

5x = 85°

3x + 10 = 61°

Ángulos externos

A = 180 - 5x = 180 - 85 = 95°

B = 180 - 2x = 180 - 34 = 146°

C = 180 - (3x+10) = 180 - 61 = 119°