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,

step-by-step explanation:

v = 1/3 a^2h

step-by-step explanation:

if the height is 57.7cm and the height of the slant edge is 18.2cm, then the volume is 1/3 a^2h.