Plz ! need this real bad! thx so much! given: ab ≅ bc and ae = 10 in m∠fec = 90° m∠abc = 130°30' find: m∠ebc, ac plz show ur work! thx again : )

Answer-

Solution-

The ΔABC is an isosceles triangle, as AB = BC

And m∠FEC=90°, so m∠BEC=90° (as they are complimentary angle)

Hence, BE is an altitude to the base.

From the properties of an isosceles triangle (where base is the side which is not equal to any other side), we know that

The altitude drawn to the base is the median and the angle bisector.

So,

And also,

the 3rd on is correct

step-by-step explanation:

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation: