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The information is not on the reference sheet. Equation of the circle (x - h) 2 + (y-k) 2 = r 2 Center: (h ,k ) r= radius. Pythagorean theorem a 2 + b 2 = c 2. Pythagorean triples 3 – 4 – 5 5- 12- 13 3 – 4 – 5 (2) 6 – 8- 10 3 – 4 – 5 (3) 9- 12- 15.
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The information is not on the reference sheet. Equation of the circle (x - h)2 + (y-k)2 = r2 Center: (h ,k ) r= radius Pythagorean theorem a2 + b2 = c2 Pythagorean triples 3 – 4 – 5 5- 12- 13 3 – 4 – 5 (2) 6 – 8- 10 3 – 4 – 5 (3) 9- 12- 15 Note: Remember to change the sign for the center coordinate and find the square root to find the radius Arc length = Central angle x 2 360 Conversion 1 foot = 12 in Area of a sector = central angle 360 SOH-CAH-TOA Euler’s Formula= F + V = E + 2 Tetra (4) Hexa (6) Octa (8) Dode (12) opposite hypotenuse α adjacent