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maya29
@maya29
June 2022
2
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please let me know the answer
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rohitkumargupta
HELLO DEAR,
LET THE RADIUS OF THE OUTER BOUNDARY BE (R CM)
GIVEN THAT:-
TOTAL AREA OF THE RING =346.5CM²
π (R²-14²)=346.5
I HOPE ITS HELP YOU DEAR,
THANKS
2 votes
Thanks 5
rohitkumargupta
Hey dear
rohitkumargupta
whose answer is correct
maya29
I don't know are u sure your answer is right
rohitkumargupta
yes
rohitkumargupta
according to the questions
rohitkumargupta
its right
WonderGirl
Radius of the inner boundary (r) = 14 cm
Area of the ring(doesn't include inner boundary area) = 364.5 cm²
Area of the inner boundary = π r²
= 3.14 × 14 × 14
= 615.44 cm²
Total area of the ring (includes areas of both boundaries) = 615.44 + 364.5
= 979.94 cm²
Radius of the outer boundary = √(979.94/3.14)
=√312.08
Radius of the outer boundary is 17.66 cm.
-WonderGirl
0 votes
Thanks 3
maya29
u are sure right rohit kumar answer is correct or yous
maya29
yours
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Answers & Comments
LET THE RADIUS OF THE OUTER BOUNDARY BE (R CM)
GIVEN THAT:-
TOTAL AREA OF THE RING =346.5CM²
π (R²-14²)=346.5
I HOPE ITS HELP YOU DEAR,
THANKS
Area of the ring(doesn't include inner boundary area) = 364.5 cm²
Area of the inner boundary = π r²
= 3.14 × 14 × 14
= 615.44 cm²
Total area of the ring (includes areas of both boundaries) = 615.44 + 364.5
= 979.94 cm²
Radius of the outer boundary = √(979.94/3.14)
=√312.08
Radius of the outer boundary is 17.66 cm.
-WonderGirl