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PT is a tangents at T to a circle whose centre is O and radius 20cm. A line segment intersects with circle at point M. If MP=9cm,then find PT. |
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Answer» Given : PT is a tangents at T to a circle whose centre is O and radius 20cm OP intersect circle at M MP = 9 cm To Find : PT Solution: OT = OM = Radius = 20 cm OP = OM + MP => OP = 20 + 9 => OP = 29 cm OP² = OT² + PT² => 29² = 20² + PT² => PT² = 29² - 20² => PT² = (29 + 20)(29 - 20) => PT² = 49 (9) => PT = 7(3) => PT = 21 PT = 21 cm Learn More: In the given FIG AM,ANand BC fare tangents to the circle find the ... In the FIGURE o is the center of circle.radius of circle is 3.1cm and pa is ... |
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