EASY
10th CBSE
IMPORTANT
Earn 100

If θ is an acute angle of a right angled triangle, then which of the following equation is not true?

50% studentsanswered this correctly

Important Questions on Introduction to Trigonometry

MEDIUM
10th CBSE
IMPORTANT

Radio towers are used for transmitting a range of communication services including radio and television. The tower will either act as an antenna itself or support one or more antennas on its structure. On a similar concept, a radio station tower was built in two sections A and B. Tower is supported by wires from a point O. Distance between the base of the tower and point O is 36 cm. From point O, the angle of elevation of the top of the section B is 30° and the angle of elevation of the top of the section A is 45°.

Question Image

Based on the above information, answer the following question.

Find the length of the wire from the point O to the top of section B.

MEDIUM
10th CBSE
IMPORTANT

Radio towers are used for transmitting a range of communication services including radio and television. The tower will either act as an antenna itself or support one or more antennas on its structure. On a similar concept, a radio station tower was built in two sections A and B. Tower is supported by wires from a point O. Distance between the base of the tower and point O is 36 cm. From point O, the angle of elevation of the top of the section B is 30° and the angle of elevation of the top of the section A is 45°.

Question Image

Based on the above information, answer the following question.

Find the distance AB.

MEDIUM
10th CBSE
IMPORTANT

Radio towers are used for transmitting a range of communication services including radio and television. The tower will either act as an antenna itself or support one or more antennas on its structure. On a similar concept, a radio station tower was built in two sections A and B. Tower is supported by wires from a point O. Distance between the base of the tower and point O is 36 cm. From point O, the angle of elevation of the top of the section B is 30° and the angle of elevation of the top of the section A is 45°.

Question Image

Based on the above information, answer the following question.

Find the area of OPB.

EASY
10th CBSE
IMPORTANT

Radio towers are used for transmitting a range of communication services including radio and television. The tower will either act as an antenna itself or support one or more antennas on its structure. On a similar concept, a radio station tower was built in two sections A and B. Tower is supported by wires from a point O. Distance between the base of the tower and point O is 36 cm. From point O, the angle of elevation of the top of the section B is 30° and the angle of elevation of the top of the section A is 45°.

Question Image

Based on the above information, answer the following question.

Find the height of the section A from the base of the tower.

MEDIUM
10th CBSE
IMPORTANT

If sin θ+cos θ=p and secθ+cosecθ=q, then prove that qp2-1=2p.