Question
From the top of an upright pole 30√3 feet high, the
angle of elevation to the top of an upright tower was 60°. If the foot of the pole was 55 feet away from the foot of the tower, what is the height of the tower?Solution
The height of poll AB= 30√3 =AB=DC=30√3 AD=BC=55feet Let ED=x Then Tan60 = ED/AD √3=x/55 X=55√3 Now -the height of the tower CE=ED+DC=55√3+30√3 =85√3feet
Copper is extracted from which ore?
The slow corrosion of iron in the presence of moist air is known as:
Milk tastes sour when kept in the open for sometimes due to the formation of-
Hydrogen was discovered by?
Which sodium compound is the most popular additive in sauces, salad dressings, and beverages for its preservative action?
Formation of Sodium Chloride is an example of
What is the common name of the compound with the formula C6H5NH2?
The Kerosene is a mixture of _______.
Calcium cyanamide, used as a fertilizer, is commercially known as ______.
What are proteins chemically composed of?
Relevant for Exams:
