Lines l and m are parallel. O is the center of the circle. The measure of angle d is 45°. The length of line RS is √2/2. Line RS forms a right angle with line m.

What is the measure of angle a?

Lines l and m are parallel. O is the center of the circle. The measure of angle d is 45°. The length of line RS is √2/2. Line RS forms a right angle with line m.

What is the measure of angle a?

angleof an ( ∠a ) will measure as45°.## What are parallel lines?

Lineswith the sameslopeand a constantdistancebetween them are said to be parallel.planethat are equally spaced apart and never cross each other are said to beparallellines.parallela = 45°anglewill be 45°.parallel lines;