Answer:
4
Step-by-step explanation:
H (height the 2x4 contact the fence)
sin 30° = H / 8
1 /2 = H / 8
H = 1/2 * 8 = 4
A ladder is 12 metres long . It leans against a wall with one end on the ground 7 metres from the wall. The other end just reach
1 answer:
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