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Draw a pair of tangents to a circle of radius 4 cm from a point which is 9 cmaway from the centre of the circle. Measure the length of the tangents |
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Answer» Answer: (radius)^2 +(length of tangent)^2=( length of common line)^2 4^2+ t^2=9^2 t^2=81-16 t^2=65 t=65^1/2 Step-by-step explanation: draw a circle of radui 4 cm then put the ONE END of scale at centre of circle and draw a line segment of 9cm from that extreme point cut the arc on the circle then join the arc with the extreme point now calculate the length of tangent U have drawn it will equal to square root of 65 |
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