There are no common factors except 1
The angle is 60° because it is one of three angles that make up an equilateral triangle.
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Answer: A & C
Step-by-step explanation:
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1.). False it’s -3
2.). False it’s a -7 not positive.
3.). False it equals 13.
4.). False it equals 19.
5.). False it’s 3.7
6.). False it’s -13.
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Answer: 3cm
Explanation:
We can use Pythagorean’s theorem to find that other side:
a^2 + b^2 = c^2
a^2 + 4^2 = 5^2
a^2 = 25 - 16
a^2 = 9
a = 3
Therefore, the other side is 3cm
