Question

Four friends Ravi,chandan,bhuvan and suraj met after a decade.they inquired about each other and also remembered the time they used to spend together.Ravi said let us check whether we still remember the theorems of chapter circle which we studied in class 9.so all four friends assumed asking questions. All 4 represented themselves with first letter.a)Ravi said bhuvan ,chandan and suraj are making an equilateral triangle with area 400√3 cm² then the distance between chandan and suraj is? b)chandan said let o be the centre of his circle then angle boc is?​

Answer 1

Answer:

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Step-by-step explanation:

We know that area of an eq. triangle of side a is = $\sqrt{3}$ a^2/4

a) so given area is 400 $\sqrt{3}$ = $\sqrt{3}$ a^2/4

                         => a = 40 cm.

therefore, distance between chandan and suraj is 40cm.

b) in eq. traingle it follows eq. angle on joining the vertex to the centroid.

so the angle BOC is 120 degrees