Question 89
The legs of a stool make an angle of 35∘ with the floor, as shown in the given figure. Find the angles X and Y.
Since l m are parallel lines and PQ is transversal,
∴x=∠PQR [alternate interior angles]⇒x=35∘ [∴ ∠PQR = 35∘]Again, x+y=180∘ [linear pair]⇒35∘+y=180∘⇒y=180∘−35∘=145∘