3 years ago

2) Find the area and perimeter of a semi -circular disc whose radius is 10cm. (take π = 3.14)

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

5 0

Answer:

=3.14×10x10

=3.14×100cm2

=3.14cm2

<h3>Perimeter = 2 pi r</h3>

=2 ×3.14×10

=6.28cm

Or =Pi d

= 3.14 ×20cm

=62.8cm

R means radius

D means diameter

radius is half of a diameter e.g radius is10 and diameter is 20

I can recommend you watching yt videos it helped me alot

hoo this helps:)

a_sh-v [17]3 years ago

4 0

Answer:

i d k

Step-by-step explanation:

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