Question

The weight of a container completely filled with water is 2.25 kg. The container weighs 0.77 kg when it's 0.2 part is filled with water. Find the weight(in kg) of the container when0.4 part of it is filled with water?

ABCD is cyclic quadrilateral, AB is the diameter of the circle. If angle ACD =50 degree, find the measure of angle BAD

PLS HELP ME!

Answer 1

For the 2nd problem, I believe you are missing an image. Remember, opposite angles of a cyclic quadrilateral is 180°

Suppose ∠ACB = 90°and ∠ACD = 50° which is given.
Then, ∠DCB = 90° + 50° = 140°.
Hence, ∠BAD = 180° - 140° = 40°.