ΔDEF is right angled at E. If m∠F = 30 deg, then find the value of (cosD - 1/√2).

The total surface area of a hemisphere is 1039.5 cm2. Find its diameter (in cm).

What is the measure of an exterior angle of a regular polygon of 6 sides?

The area of an equilateral triangle is 49√3 cm2. Find its side (in cm).

The HR department of a company prepared a report. The pie chart from this report shows number of employees in all the departments that the company has. Study the diagram and answer the following questions.

If the average monthly salary of the employees of this company is Rs 20,000 then what is the total of the salaries (in Rs lakhs) paid to all the employees of this company?

The HR department of a company prepared a report. The pie chart from this report shows number of employees in all the departments that the company has. Study the diagram and answer the following questions.

The measure of the central angle of the sector representing department B is ________ degrees.

The HR department of a company prepared a report. The pie chart from this report shows number of employees in all the departments that the company has. Study the diagram and answer the following questions.

What is the total number of employees of the company?

The HR department of a company prepared a report. The pie chart from this report shows number of employees in all the departments that the company has. Study the diagram and answer the following questions.

The most number of employees belong to which department?