Answer:
90 cm is submerged (depth of water)
Step-by-step explanation:
Refer to diagram attached.
Let
x = total length of the lotus stem
16 = exposed part of stem
56 = horizontal displacement.
Hence
depth of water = x-16
Using the Pythagorean theorem,
(x-16)^2 + 56^2 = x^2
Expand
x^2 -32x + 256 +3136 = x^2
Simplify
3392 = 32x
x = 3392/32 = 106
Depth of water = x-16 = 106 - 16 = 90 cm
