Question

49) In an isosceles right angle PQR, right angle at P, then : (a) QR- =2PQ? (b) QP2 = 2 PR (C)QP2 = 2 QR (d) PRP = 2 QR

Australia won xD​

Answer 1

prefer to the attachment

Answer 2

Answer:

For best illumination of a piece of art, a lighting specialist for an art gallery recommends that a ceiling- mounted light be 3 meter from the piece of art and that the angle of depression of the light be 30°. How far from a wall should the light be placed so that the recommendations of the specialist are met? Notice that the art extends outward 10 cm from the wall. (a) 2.7 m (c) 3.9 m (b) 1.8 m (d) 3.1 m

Thanku choo much