Real square roots of 144
2 answers:
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You can treat it as an arithmetic sequence, so multiply the average integer value by the number of integers:
(40+12)/2 × (40 -12 +1) = 26×29 = 754
You can subtract the sum of integers 1–11 (66) from the sum of integers 1–40 (820) to get the sum of integers from 12–40: 820 - 66 = 754.
You can let a graphing calculator do it. (See attached.) This method takes perhaps the least amount of thought. It, too, gets a sum of 754.
(40+12)/2 × (40 -12 +1) = 26×29 = 754
You can subtract the sum of integers 1–11 (66) from the sum of integers 1–40 (820) to get the sum of integers from 12–40: 820 - 66 = 754.
You can let a graphing calculator do it. (See attached.) This method takes perhaps the least amount of thought. It, too, gets a sum of 754.
Answer:
The art is rectangular because
(0.5) squared + (1.2) squared = (1.3) squared
Step-by-step explanation:
Given that the piece of art is rectangular in shape.
Length of piece of art = 0.5 meters
Width of piece of art = 1.2 meters
Kindly refer to the attached image in the answer area.
Two adjacent sides of a rectangle are given, the diagonal value can be found by using Pythagorean Theorem.
According to Pythagorean theorem:
Here, Hypotenuse will be the diagonal of the rectangle.
Base and Perpendicular will be the two adjacent sides.
Therefore,
Therefore, the answer is:
The art is rectangular because
OR
(0.5) squared + (1.2) squared = (1.3) squared
