Question

10. Bina wants to decorate a circular cake of diameter 15 cm with cream on its edge. Find the cost of decorating the circular cake if it costs 20 per cm. (Take a = 3.14) ​

Answer 1

Answer:

$4.28cm$

$4.28 \times 20$

$85.6$

HOPE HELPFUL

Answer 2

$\huge\pink{☆}{\mathbb\orange{A}\mathbb\blue{N} \mathbb\purple{S}\mathbb\pink W}\mathbb\green{E}\mathbb\red{R}\blue{☆}$

given diameter=15

hence, radius =15/2

to find, 1) circumference of circle

therefore, circumference of circle

=2πr

=2×22/7×15/2

=660/14

2) now, the cost of decorating the circular cake if it costs 20 per cm

=660/14×20

$\huge\fbox\pink{=942.81}$

$\huge\orange{Please\:mark\:me\:as\:brainliest}$