Question

find the distance between the points (0 0) and (sin 30 degree , cos 30 degree)​

Answer 1

Given :- find the distance between (0,0) and (sin 30°,cos 30°) .

Answer :-

we know that, using distance formula, distance between two coordinates (x1,y1) and (x2,y2) is given by,

• √{(x2 - x1)² + (y2 - y1)²} .

so, putting given values we get,

→ D = √{(sin30° - 0)² + (cos30° - 0)²}

→ D = √(sin 30°)² + (cos 30°)²

→ D = √{(1/2)² + (√3/2)²

→ D = √(1/4 + 3/4)

→ D = √(4/4)

→ D = 1 unit (Ans.)

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find the centroid of the triangle whose vertices are (2, -3), (-4, 2)and(8, 13).

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