Find the area of a semicircle whose diameter is 49cm. Also find the length of boundary of the semicircle
Answers
Answered by
6
diameter =d=49 cm
radius =d/2=49/2 cm
1)area of the semi circle= pi*r^2/2
=22/7*49/2*49/2
=3773/2
=1886.5 sq cm
2) length of the boundary = pi*r+d
=22/7*49/2+49
=77+49
=126 cm
radius =d/2=49/2 cm
1)area of the semi circle= pi*r^2/2
=22/7*49/2*49/2
=3773/2
=1886.5 sq cm
2) length of the boundary = pi*r+d
=22/7*49/2+49
=77+49
=126 cm
Answered by
1
Answer:
126 cm
Step-by-step explanation:
diameter =d=49 cm
radius =d/2=49/2 cm
1)area of the semi circle= pi*r^2/2
=22/7*49/2*49/2
=3773/2
=1886.5 sq cm
2) length of the boundary = pi*r+d
=22/7*49/2+49
=77+49
=126 cm
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