A baby otter was born early. At birth, its weight was 7/8 kilograms, which is 9/10 kilograms less than the average weight of the newborn otters in the aquarium. What is the average weight of the newborn otters?

the answer to the expression is 83

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.

i don't know

step-by-step explanation: