Question 11
Exercise 21. Point $M$ is placed inside the square $ABCD$ in such a way that
$$\angle MAD:\angle MBA:\angle MCD=2:4:7.$$
What is measure of $\angle MCA$ in degrees?
**Editorial input convention:** Label the square vertices A,B,C,D in cyclic order, with M strictly inside. Enter the angle measure in degrees.
$$\angle MAD:\angle MBA:\angle MCD=2:4:7.$$
What is measure of $\angle MCA$ in degrees?
**Editorial input convention:** Label the square vertices A,B,C,D in cyclic order, with M strictly inside. Enter the angle measure in degrees.