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Solve a practical right-angled-triangle problem

Question 1 of 8

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An extension ladder rests against a vertical wall on level ground. V is the foot of the ladder; W is the point reached on the wall; U is the foot of the wall

Triangle VWU: VU is horizontal; UW is vertical upwards; VW slopes upwards from V. Right angle at U. The angle from ray VU to ray VW is 71°. VU = 4 m; WU = x m. Not to scale.4 mx mVWU71°
VU horizontal; UW vertical. Not to scale
1 mark

Calculate the height reached on the wall in metres, correct to 1 decimal place

Format: 1 d.p.