A circle with centre has radius

MATHEMATICS · Multi-part · CBSE · Mathematics · Circles · Circles

Problem

A circle with centre OO has radius 20 cm20\,\text{cm}. Two chords ABAB and ACAC are drawn such that AB=24 cmAB = 24\,\text{cm} and AC=32 cmAC = 32\,\text{cm}. Let DD and EE be the feet of the perpendiculars dropped from OO to ABAB and ACAC respectively. (i) Show that AD=DBAD = DB and AE=ECAE = EC. (ii) Calculate ODOD and OEOE. (iii) Find the length of DEDE.

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