Question
The angle of depression of a point on the ground as seen
from the top of a tower, 35 feet high, is 45°. Find the distance of the point on the ground from the foot of the tower.Solution
Let θ be the angle of depression of the point on the ground as seen from the top of a tower, here θ = 45° Let AC be the height of the tower, here AC = 35 feet. Let the distance of the point on the ground from the foot of the tower, AB = x feet. Here, tan θ = AC/AB ⇒ tan 45° = 35/x ⇒ 1 = 35/x ⇒ x = 35 feet
31.98% of 224.99 = 24.98% of ? + 9.91% of 499.99
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exactvalue.)
49.99% of 639.99 + 159.98% of 49.99 = ?2
79.79% of 299.87 - 54.67% of (39.982 - 9.822 ) = ? - 19.92 × 199.98
? + 144.99 – 110.01 = 15.01 × 7.98
24.89% of 720.01 - 4.09 × ? = (5.89)2
45.1298% of (14.032 - 75.98) + 27.87% of √40001 = 449.98% of 24.098 + ?Â
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
What approximate value will come in place of question (?) in the following given expression? You are not expected to calculate the exact value.
...1279.908 + 1499.897 ÷ 29.912 × 22.22 = ? + 82.210 × 4.908
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