Aphotocopier increased the sides of a square in the ratio 4: 5.
by what percentage are the sides increased?

The sides are increased by a percentage of 25%

Step-by-step explanation:

Let

x -----> the length side of the original square

y ----> the length side of the increased square

we have

the increase is calculated by subtracting x from y

so

Remember that

therefore

The sides are increased by a percentage of 25%

idk

step-by-step explanation:

use that smart brain

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐