daca restul impartirii lui,,n, la 2012 este 2009, iar restul impartirii aceluias ,,n,, la 2011 este 2010,aflati restul impartirii lui ,,,n,,la 2011x2012

the answer is that it is true

we know that

1) the inscribed angle measures half of the arc it comprises.

so

m∠dgf= > expression

2) the opposite angles in an inscribed quadrilateral are supplementary angles

so

m∠dgf=

m∠dgf=°

substitute in the expression to find the value of arc ef

therefore

the answer is

the measure of the arc ef is

answer: 1400

step-by-step explanation: 20 x 5 = 100 add the zero 1000 8 x 50 = 400 + 1000 = 1400