Answer:
Area of ΔXYZ = n(r * r) square units
Step-by-step explanation:
Sides of ΔABC are 30 units, 40 units and 60 units.
Corresponding sides of another triangle XYZ are r times as long as the sides of ΔABC.
Therefore, sides of ΔXYZ will be, 30r units, 40r units and 60r units.
Perimeter of the triangle XYZ = 30r + 40r + 60r
= 130r units
If the area of ΔABC = n square units
Then the ratio of the area of ΔXYZ and ΔABC = (Ratio of the sides of ΔXYZ and ΔABC)²


Area of ΔXYZ = nr² ≈ n(r * r)
Therefore, Option (3) will be the answer.
Step-by-step explanation:
- <em>perimeter</em><em>(</em><em>P)</em><em>=</em><em>3</em><em>+</em><em>4</em><em>+</em><em>4</em>
- <em>3</em><em>+</em><em>4</em><em>+</em><em>4</em>
- <em>1</em><em>1</em>
If you like up the numbers vertically it makes it easier to answer the problem:
400,000,000
319,238,105
——————-
719,238,105
And because it is really just zeros it is a fairly simple problem :)
Answer:

Step-by-step explanation:
Commutative property of addition:
Changing the order of addends does not change the sum.
<h3>Hope it is helpful...</h3>