2. A man is standing in front of a wall and looking at its topmost point. If the angle of elevation is 60° and the height of the wall is 40 m, find the distance between the foot of the man and the wall. 3. The height of a pole is 30 m. A man is standing at a distance of 20 m from the foot of the pole. The man looks at the topmost point of the point from the place where he is standing. Determine the angle made by the man's eye with the topmost point of the pole.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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