1 + 1/2 + 1/3.... .......the harmonic series....................is like the start of all primes.........2, 3..............and like e and pi..........respectively............e = 2.71 ..........pi = 3.14.......................a 2 and a 3..............sym......


45/45 right triangle corresponds to 1/2.....................and a 30/60 right triangle to 1/3......................60..........................11 + 13 + 17 + 19 = 60........................the 1st string of 4 primes in double digits............................is like the cosine of 60..........which is 1/2...............the sine of 30 degrees is 1/2.........................................the sine of 60 degrees is 1/2 the square root of 3................17 + 19 = 36...................a zero is understood to be in many places in math..........like in long division.................................13..........is the prime immediately before...........17....................the square root of 13 is 3.60.............like full circle...........2 pi.....................17 + 19 = 36.........with a zero.........is 360..........full circle.........fractal patterns....................2 + 3 + 5 + 7 = 17.....................all single digit primes...................like 17 + 19 = 36..................put a zero at the end.........full circle..........like 2pi.......or pi.,..............full circle in a circle whose radius.........is 1/2..........is exactly pi........the unit circle.............................................has a circum. of 2pi..........half circle............is pi..........1/2...........the critical line.............

A 45 45 90 triangle is a special type of isosceles right triangle where the two legs are congruent to one another and the non-right angles are both equal to 45 degrees. Many times, we can use the Pythagorean theorem to find the missing legs or hypotenuse of 45 45 90 triangles.

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How do you do 45 45 90 triangles?

Type 1: You're given one leg. Because you know both legs are equal, you know the length of both the legs. You can find the hypotenuse by multiplying this length by the square root of 2. Divide the hypotenuse by the square root of 2 to find the legs (which are equal).

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What is a 45 45 90 degree triangle?

A 45 – 45 – 90 degree triangle (or isosceles right triangle) is a triangle with angles of 45°, 45°, and 90° and sides in the ratio of. Note that it's the shape of half a square, cut along the square's diagonal, and that it's also an isosceles triangle (both legs have the same length).

Identifying the 45 – 45 – 90 Degree Triangle - dummies

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What is the ratio of all 45 45 90 triangles?

Hence, the angles respectively measure 45° (π4), 45° (π4), and 90° (π2). The sides in this triangle are in the ratio 1 : 1 : √2, which follows immediately from the Pythagorean theorem.

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What is the rule of a 45 45 90 Triangle?

Lesson Summary. 45-45-90 triangle means a triangle with two 45 degree angles and one 90 degree angle. A 45-45-90 triangle has two sides that are of equal length, called the legs. The third side is longer than the other two and is called the hypotenuse and is always opposite the right angle.

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