Question number 1

Dear Student, 
Solution) 1)
We follow these steps  :

Step  1  :  Draw PQR =  125° with the help of protector . 

Step  2 :  TAke any radius ( Less than half of PQ ) and center Q draw an arc that intersect our lines PQ and QR at C and D respectively  .

Step 3 :  Draw a line OA with same radius ( Used in step 2 )  draw and arc that intersect OA at E .

Step 4 : Now with radius  " CD "  and center "  E "  draw an arc that intersect our arc at " F "  .

Step 5 :  Now we join OE and extend it to OB we get AOB =  125°


Regards!

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