Volume and Surface Area Questions Practice Question and Answer

Q:

शंकु बनाने के लिए एक अर्धवृत्त को मोड़ा जाता है। शंकु की ऊंचाई (सेमी में) ज्ञात करें यदि अर्धवृत्त का व्यास 28 सेमी है?

740 0

  • 1
    $$ {7\sqrt{3}}$$
    Correct
    Wrong
  • 2
    $$ {14\sqrt{3}}$$
    Correct
    Wrong
  • 3
    $$ {7\sqrt{5}}$$
    Correct
    Wrong
  • 4
    $$ {7\sqrt{13}}$$
    Correct
    Wrong
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  • Workspace

Answer : 1. "$$ {7\sqrt{3}}$$"

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  • Workspace

Answer : 4. "192 cm3"

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  • Workspace

Answer : 4. "27"

Q:

यदि दो समरूप त्रिभुजों ABC और DEF के क्षेत्रफलों का अनुपात 36: 81 हो, और EF = 6.9 सेमी. है, तो BC बराबर है- 

728 0

  • 1
    4.6 cm.
    Correct
    Wrong
  • 2
    6.4 cm.
    Correct
    Wrong
  • 3
    4 cm.
    Correct
    Wrong
  • 4
    6 cm.
    Correct
    Wrong
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  • Workspace

Answer : 1. "4.6 cm. "

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  • Workspace

Answer : 2. "300"

Q:

किसी प्रिज्म का आयतन 288cm3 और ऊंचाई 24cm  है। प्रिज्म के आधार का क्षेत्रफल ( cm2) में है:

726 0

  • 1
    10
    Correct
    Wrong
  • 2
    15
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    14
    Correct
    Wrong
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  • Workspace

Answer : 3. "12"

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