Complete the following table:
| Name of Chandrayaan | Date of Launching | Objectives of Mission |
|---|---|---|
| Chandrayaan-1 | (a) (b) (c) | |
| Chandrayaan-2 | (a) (b) (c) | |
| Chandrayaan-3 | (a) (b) (c) |
Title: Chandrayaan Missions Overview
| Name of Chandrayaan | Details / Key Information |
|---|---|
| Chandrayaan-1 | India's first lunar mission launched in 2008; confirmed the presence of water molecules on the Moon. |
| Chandrayaan-2 | Launched in 2019; aimed to explore the Moon's south polar region. The orbiter was successful, though the lander Vikram crash-landed. |
| Chandrayaan-3 | Launched in 2023; successfully landed near the Moon’s south pole, making India the first country to achieve this feat. |
You are Mr. Abhishek Sharma. You are planning to celebrate your parents’ 50th wedding anniversary in a grand manner. Draft a formal invitation card for your friends and relatives. Mention all necessary details.
In the following figure \(\triangle\) ABC, B-D-C and BD = 7, BC = 20, then find \(\frac{A(\triangle ABD)}{A(\triangle ABC)}\). 
The radius of a circle with centre 'P' is 10 cm. If chord AB of the circle subtends a right angle at P, find area of minor sector by using the following activity. (\(\pi = 3.14\)) 
Activity :
r = 10 cm, \(\theta\) = 90\(^\circ\), \(\pi\) = 3.14.
A(P-AXB) = \(\frac{\theta}{360} \times \boxed{\phantom{\pi r^2}}\) = \(\frac{\boxed{\phantom{90}}}{360} \times 3.14 \times 10^2\) = \(\frac{1}{4} \times \boxed{\phantom{314}}\) <br>
A(P-AXB) = \(\boxed{\phantom{78.5}}\) sq. cm.