Give one use of a concave and a convex mirror.​

Answer:

Teacher teach to her students

Answer:

Answer:

i) distance of the boat from the foot of the lighthouse = 240√3m

ii) new angle of depression of the boat = 45°

Answer:

New angle of depression of the boat from the top of observation tower is 45°

Step-by-step explanation:

height of the tower is

[tex]240m[/tex]

The angle of depression of the boat coming towards the lighthouse and found it to be 30˚

i) The a labelled figure on the basis of given information and the distance the boat from the foot of the observation tower is as follows

in triangle ABC

angel ACB= Tan 30˚

Tan C =

[tex] \frac{ab}{bc} [/tex]

Tan 30˚=

[tex] \frac{240}{bc} [/tex]

=

[tex] \frac{1}{ \sqrt{3} } = \frac{240}{bc} [/tex]

BC=

[tex]240 \sqrt{3} [/tex]

ii)after 10 minutes, the guard observed that the boat was approaching the tower and its distance from tower is reduced by 240(√3 -1) m.

Actual distance is =

[tex] = 24 \sqrt{3 } - 240 \sqrt{3} + 24 0| [/tex]

[tex] = 240[/tex]

From triangle ABC

Tan D

[tex] = \frac{ab}{bd} [/tex]

Tan D

[tex] = \frac{240}{240} \\ = 1[/tex]

{tan45°=1}

Tan D= Tan 1

D=1

New angle of depression of the boat from the top of observation tower is 45°

Answer:

By default, Word aligns text to the left margin in new documents. However, there may be times when you want to adjust text alignment to the center or right.

Answer:

It has really helped my concentration and improved my health. Yoga teacher: I hope you do breathing exercises too. Student: I start with pranayam, then meditation and finally asanas. Yoga instructor: I am sure you have found a new surge of energy and vitality by doing yoga asanas.

please mark me as brilliant

The question is answered below-

A dialogue is formed between student and teacher on the importance of yoga-

Teacher- 21st June is celebrated as International Yoga Day. There will be an awareness program in the school.

Student- Why is it necessary to celebrate International Yoga Day?

Teacher- The day signifies the immeasurable benefits that Yoga offers.

Student- I know, Ma'am. It keeps our bodies healthy.

Teacher- Alongside, it increases concentration and also works on improving various health conditions like blood pressure and racing heart. It is very important to aware people of yoga. Everyone should include yoga in their daily routine as this is a life-changer.