ABCD is a parallelogram Given
AE=CE, BE=DE <span>The diagonals of a parallelogram are bisect each other
</span>∠AEB=∠CED Vertical angles are congruent
ΔABE is congruent to ΔCDE SAS theorem<span>
</span>
Answer:
tan 72° = h/30
h = 30 tan 72°
h = 92.33
The ladder reaches a height of 92.33 ft.
