Question

if the radius of a circle decreased by 25% its diameter decreased by?​

Answer 1

Answer:

25%

Step-by-step explanation:

let's suppose,

given radius(r)=4cm,

then,

given diameter(d)=8cm

Now if radius is reduced by 25%

i.e. new radius= 4 - ( 25/100 ×4)

New radius (R)= 4 - 1

New Radius (R)= 3cm

Thus, new Diameter(D)= 2×3cm = 6cm

Now, D/d = 6/8 = .75

OR,

D= 3/4 × d

OR,

d is reduced by 25% Answer