Question

In quadrilateral PQRS 

(i) Name the sides, angles, vertices and diagonals. 

(ii) Also name all the pairs of adjacent sides, adjacent angles, opposite sides and opposite angles. 

Answer 1

i) In quadrilateral PQRS,

sides = PQ, QR, RS and SP

angles = ∠P, ∠Q, ∠R, and ∠S

vertices = P, Q, R and S

diagonals = PR and QS

ii) Pairs of adjacent sides = (PQ, QR), (QR. RS), (RS, SP), (SP, PQ)

Pairs of adjacent angles (∠P, ∠Q). (∠Q, ∠R), (∠R, ∠S), (∠S, ∠P)

Pairs of opposite sides = (PQ, RS) and (QR, PS)

Pairs of opposite angles = (∠P,∠R) and (∠Q, ∠S)