R27won. WeZACB = 90°meter of the circle. Ifknow that angle in a semicircle is 90°ACBAA + CAB + ZACB = 180°sum of angles in a triangle = 1807)BA +27° + 90° = 180°BA = 180° - 27° - 90° = 63Exercise 151. Draw a circle wZAOB = 60°. Me2. Draw a circle of[Hint. To draw chaand radius 5 cm, di60°. Measure the length of the chord AB.le with centre O and radius 2.5 cm. Draw two Tadil OA and OB such theShade the minor segment of the circle.vele of radius 3.2 cm. Draw a chord AB of this circle such that AB 5radius 5 cm, draw an arc to meet the circle at B. Join AB.)To draw chord AB of length 5 cm, take a point A on the circle. With A as cenydistance 5 cm from the centre.the length of the tangent drawn to a circle of radius 3 cm. from a pointIn the adjoining figure, PT is a tangent to the circle withentre C. Given CP = 20 cm and PT = 16 cm, find the radiusof the circle.in each of the following figure, O is the centre of the circle. Find the size ofettered angle :0500