Question

construct circles of the following radii using a compass 4cm
​

Answer 1

Answer:

a) 4 cm

b) 6.2. cm

c) 1.6 cm

to find

draw the circles

Step-by-step explanation:

solutions :-

Answer 2

Answer:

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... a circle of radius 4 cm. Take a point P outside the circle.

Without using the centre of the circle, draw two tangents to the circle from point P.

Step-by-step explanation:

$\fbox{ \tt{Steps of construction.}}$

• i. Draw a line segment 4 cm.

• ii. Take a point P outside the circle and draw a secant PAB, intersecting the circle at A and B.

• iii. Produce AP to C such that AP=CP.

• iv. Draw a semi-circle with CB as diameter.

• v. Draw PD perpendicular to CB, intersecting the semi-circle at D.

• vi. With P as centre and PD as radius draw arcs to intersect the given circle atlT and M.

• vii. Join PT and PM.

• viii. Then PT and PM are the required tangents.