Question

abcd is a quadrilateral whose vertices are on the semicircle such that ab=bc=cd=10cm and ad is the diameter of the circle having centre o. find the perimeter of quadrilateral abcd

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Perimeter of quadrilateral abcd is 50.

Step-by-step explanation:

• AB =BC = CD =10cm

• We can see that OA =OB =OC =OD

• Perimeter =2r+πr = (2+π)r

• Perimeter of quadrilateral ABCD = AB + BC + CD + AD

                                                               =10 + 10 + 10 +2(10)

                                                              =30+20 = 50.