what is the female germ cell in flowers?
Answers
Gynoecium is the female whorl in the flower
Calyx is included in Gynoecium.
Ovule.. which provided egg cell during fertilization is also a part of Gynoecium.
Thanks & regards,
Vaishnavi N
Answer:
GivEn:
Radius of cone = 3.5 cm
Height of toy = 15.5 cm
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To find:
Total surface area of toy.
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SoluTion:
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☯ Toy is hemispherical at bottom and conical at top.
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Therefore,
T.S.A of toy = C.S.A of hemisphere + C.S.A of cone
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Slant height of cone, l = \sf \sqrt{h^2 + r^2}
h
2
+r
2
⠀⠀⠀⠀⠀⠀⠀
:\implies\sf l = \sqrt{3.5^2 + 12^2}:⟹l=
3.5
2
+12
2
⠀⠀⠀⠀⠀⠀⠀
:\implies\sf l = \sqrt{12.25 + 144}:⟹l=
12.25+144
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:\implies\sf l = \sqrt{156.25}:⟹l=
156.25
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:\implies{\underline{\boxed{\sf{\pink{l = 12.5\;cm}}}}}\;\bigstar:⟹
l=12.5cm
★
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Therefore,
⠀⠀⠀⠀⠀⠀⠀
\;\;\;\;\;\;\;\;\star\;\sf 2 \pi r^2 + \pi rl⋆2πr
2
+πrl
⠀⠀⠀⠀⠀⠀⠀
:\implies\sf 2 \pi (3.5)^2 + \pi (3.5)(12.5):⟹2π(3.5)
2
+π(3.5)(12.5)
⠀⠀⠀⠀⠀⠀⠀
:\implies\sf 24.5 \pi + 43.75 \pi:⟹24.5π+43.75π
⠀⠀⠀⠀⠀⠀⠀
:\implies\sf 68.25 \pi:⟹68.25π
⠀⠀⠀⠀⠀⠀⠀
:\implies\sf 68.25 \times \dfrac{22}{7}:⟹68.25×
7
22
⠀⠀⠀⠀⠀⠀⠀
:\implies{\underline{\boxed{\sf{\purple{214.5\;cm^2}}}}}\;\bigstar:⟹
214.5cm
2
★
⠀⠀⠀⠀⠀⠀⠀
\therefore∴ Hence, Total surface area of toy is 214.5 cm².
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Related formulas:
TSA of Sphere = 4πr²
Volume of sphere = \sf \dfrac{4}{3} \pi r^3
3
4
πr
3
TSA of hemisphere = 3πr²
CSA of hemisphere = 2πr²
Volume of hemisphere = \sf \dfrac{2}{3} \pi r^3
3
2
πr
3
TSA of cone = πr(r + l)
CSA of cone = πrl
TSA of cylinder = 2πr(r + h)
CSA of cylinder = 2πrh
TSA of cylinder = πr²h
Explanation:
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