Math, asked by datta55, 7 months ago

what are standard angles .How many pairs of sides are parallel in trapezium ?

Answers

Answered by Anonymous

Answer:

Trigonometric ratios are Sine, Cosine, Tangent, Cotangent, Secant and Cosecant. The standard angles for these trigonometric ratios are 0°, 30°, 45°, 60° and 90°. These angles can also be represented in the form of radians such as 0, π/6, π/4, π/3, and π/2

1 pair of sides are parallel.

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