Drawa circle with centre O and radius 5 cm. Draw two radii OA and OB so that they are inclined at an angle of 130 degree . At A and B construct tangents to the circle. Measure the angle between the tangents.

Answer  :

We follow these steps :

Step 1 :  Draw a circle with radius of 5 cm and center " O "  .

Step 2 :  Take any point " A "  on circumference and join OA .

Step 3 : Now we draw 130° at point  " O "  with the help of protractor . As :  AOB  = 130°  B lies on circumference of circle , So OA and OB are radius of our circle

Step 4 : With any radius ( Less than half of OA and center "  A "  draw another arc that intersect our line OA at "D " with same radius and center "  D "  draw another arc that intersect our previous arc at " E " And again with same radius and center "  E"  draw another arc that intersect our main arc at " F " . Now with same radius and take center "  E "  and " F "  we draw arcs that intersect at  " G " .

Step 5 : Now with same radius and center "  B "  draw another arc that intersect our line OB at "H " with same radius and center "  H "  draw another arc that intersect our previous arc at " I " And again with same radius and center "  I"  draw another arc that intersect our main arc at " J " . Now with same radius and take center "  I "  and " J "  we draw arcs that intersect at  " K " .

Step 6 :  Line AG and BK extend and meet at P  .




Now we measure APB , we get

 APB  = 50°

  • 3
What are you looking for?