WAEC - Mathematics (1989 - No. 10)

The angle of elevation of X from Y is 30^o. If XY = 40m, how high is X above the level of Y?

10m

20m

20√3m

40m

50m

Uitleg

XZ = 40 x sin30^o
= 20m

Opmerkingen (0)

Advertentie