Question

va rog din suflet la ex.8 am nevoie urgent dau coroana va rogg​

Answer 1

Răspuns:

<D=117°5'

<D=<F=117°'5

<E=<G=x°

<D+<E+<F+<G=360°

117°5'+x°+117°5'+x°=360°

234°10'+2x°=360°

2x°=360°-234°10'

2x°=359°60'-234°10`

2x°=125°50'

x°=125°50':2°

x°=75°50'