Can someone help me with this?!
1 Answer
- B
- C
- B
Explanation:
Question 19
Note that since
Using
We have
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Question 20
This is a straight application of the Pythagorean Theorem.
(Note that the extended base length is irrelevant to the right triangle).
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Question 21
Of all rectangular shapes the square encloses the greatest area for any given perimeter.
(The option of a circle can be ruled out without calculation since its perimeter/circumference will involve a factor of