Respuesta :

zarampa

Answer:

32.757°

Explanation:

c = 2*3.14* r

c = circunference, perímeter o the circle

r = radius

c = 2*3.14*7cm

c = 43.96cm

Proportions:

43.96cm ⇒ 360°

4cm ⇒ C°

C = 360*4/43.96

C = 32.757°

the angle subtended by the chord at the centre​:

32.757°

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