Volume and Surface Area Practice Question and Answer

Q:

नीचे दिए गए चित्र में AD,∠BAC का समद्विभाजक है। यदि ΔABD का क्षेत्रफल 40 वर्ग सेमी और AC = 3AB है तो ΔABC का क्षेत्रफल ज्ञात कीजिये?

889 0

  • 1
    $$ {150 \ cm^{2}}$$
    Correct
    Wrong
  • 2
    $$ {100 \ cm^{2}}$$
    Correct
    Wrong
  • 3
    $$ {120 \ cm^{2}}$$
    Correct
    Wrong
  • 4
    $$ {160 \ cm^{2}}$$
    Correct
    Wrong
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Answer : 3. "$$ {120 \ cm^{2}}$$"

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Answer : 3. "24"

Q:

एक लोहे का पाइप 20 सेमी लंबा और जिसका बाहरी व्यास 25 सेमी है। यदि पाइप की मोटाई 1 सेमी है, तो पाइप का कुल पृष्ठीय क्षेत्रफल ज्ञात कीजिये?

905 0

  • 1
    $$ {3168\ cm^{2}}$$
    Correct
    Wrong
  • 2
    $$ {3186\ cm^{2}}$$
    Correct
    Wrong
  • 3
    $$ {3200\ cm^{2}}$$
    Correct
    Wrong
  • 4
    $$ {3150\ cm^{2}}$$
    Correct
    Wrong
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Answer : 1. "$$ {3168\ cm^{2}}$$"

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Answer : 2. "$$ {2\over 9}$$"

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Answer : 2. " 2 सेमी"

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Answer : 3. "$$ {2 : \sqrt{3}}$$"

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Answer : 1. "$$ {20\over3}$$"

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Answer : 3. "2520"

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