Explain shapes: name, sides, angles, and drawing specific angles for a triangle.

$$\boxed{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18}$$

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ବିଭାଗ: (Section)

1. ବର୍ଗମୂଳ ନିର୍ଣ୍ଣୟ କର ୫ଟି ବର୍ଗସଂଖ୍ୟା ଲେଖ ... ତାହା ବର୍ଣ୍ଣନା କର ।
(Find the square root, write 5 perfect square numbers, and describe methods to find the square root.)

• Five perfect square numbers:

  • $1^2 = \boxed{1}$
  • $2^2 = \boxed{4}$
  • $3^2 = \boxed{9}$
  • $4^2 = \boxed{16}$
  • $5^2 = \boxed{25}$

• Methods to find the square root:

  • Prime Factorization Method: Break the number into its prime factors. For every pair of identical prime factors, take one factor out. Multiply these factors to get the square root. For example, $\sqrt{36} = \sqrt{2 \times 2 \times 3 \times 3} = 2 \times 3 = 6$.
  • Long Division Method: This is a systematic algorithm used to find the square root of larger numbers.
  • Estimation and Trial-and-Error: Guess a number, square it, and adjust your guess based on whether the result is too high or too low until you find the correct square root.

2. ନିଜ ସାଙ୍ଗସାଥୀଙ୍କ ସହ ମିଶି ଗଛକୁ କିପରି ସୁରକ୍ଷା କରି ପାରିବ । ... କିପରି ଲେଖ ।
(How can you protect trees with your friends? Write about it.)

To protect trees with friends, we can plant new saplings regularly and ensure they are watered and cared for. We should also educate others about the importance of trees for clean air and a healthy environment, discouraging cutting down trees and promoting recycling to reduce the demand for new paper products. Organizing clean-up drives in local parks can also help protect existing trees.

3. ସମସ୍ତ ଚିତ୍ର ଅଙ୍କନ କରି ଦେଖାଅ ।
(Draw all the figures and show them.)

As an AI, I cannot physically draw, but I can describe the figures mentioned in Question 1 of the main section:

• Rectangle (ଆୟତକ୍ଷେତ୍ର): A four-sided polygon with four right angles. Opposite sides are equal in length.
• Triangle (ତ୍ରିଭୁଜ): A three-sided polygon with three angles.
• Hexagon (ଷଡ଼ଭୁଜ): A six-sided polygon with six angles.
• Square (ବର୍ଗକ୍ଷେତ୍ର): A four-sided polygon with four equal sides and four right angles.
• Circle (ବୃତ୍ତ): A round shape with no straight sides or angles, where all points on the boundary are equidistant from the center.