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draw a pair of tangents of a circle of radius 4 cm such that the angle between the tangents is 70 degree |
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Answer» To draw a pair of tangents of a circle of radius 4 cm such that the angle between the tangents is 70 degree, steps are as follow: 1) With the HELP of a compass, draw a circle of radius 4cm. 2) Name the center as O. 3) Take a point P on circle. 4) Join OP and extend this segment BEYOND P to Q, such that, PQ is also 4cm. 5) We have OQ of total 8 cm. 6) Draw a perpendicular bisector to OQ. 7) This perpendicular bisector is the TANGENT to the circle and will touch the circle at point B. 8) Now taking O as center and OB as base draw a radius 110 degree to OB. 9) The point where radius meet circle, name it A. 10) Now taking A as center and AO as base draw a 90 degree angle. 11) Extent it. The point where this tangent meets previous tangent, name it C. 12) Angle between the two tangents will be 70 degrees. |
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