Answer should be in step by stepi will mark as brianlist to best answe

1.	Answer should be in step by stepi will mark as brianlist to best answer
Answer» ANSWER: In the given figure, consider the top right triangle. It is a right angled triangle. So its central angle must be 90°. Also, according to Angle Sum Property of a triangle, The sum of all the angles of the triangle must be 180°. => Y + 30° + 90° = 180° => Y = 180° - 120° => Y = 60°

Answer should be in step by stepi will mark as brianlist to best answer

Answer»

In the given figure, consider the top right triangle. It is a right angled triangle. So its central angle must be 90°.

Also, according to Angle Sum Property of a triangle, The sum of all the angles of the triangle must be 180°.

=> Y + 30° + 90° = 180°

=> Y = 180° - 120°

=> Y = 60°