R=11
1 squared is 1
Add ten to one and you get 11!
Answer:
Area of a circle- <em>pi </em>x <em>r </em>square
3.14 x 2 x 2
= 3.14 x 4
= 12.56
Round off- 13
Answer: OPTION A.
Step-by-step explanation:
Find the length scale factor by dividing the known length of the larger triangle by the known length of the smaller triangle:

Then, the area scale factor is:

To find the area of the the larger triangle, multiply the area of the smaller triangle by the area scale factor. Then:

So, the option that shows an approximation of the area of the larger triangle is the option A:
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