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rm715
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#1
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Hiya,
Could anyone please help me understand this question? I have the mark scheme but still can't get my head around it

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For a) would it be that 48 + 110 = 158 then 180-158 = 22 and thus CDX = 22 as they are alternate?
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Ronnipop
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Both triangles are equal so angle BXA also equals 110 so the angle BAX would be 22 because angles in a triangle equal 180. That means angle CDX also equals 22
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jazz_xox_
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Angle XCD is 48 because angles in the same segment are equal (bow-tie rule). Angles in a triangle equal 180 so 110+48= 158. 180-158=22
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rm715
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Thankyou and how would I solve b?
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rm715
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Zacken
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(Original post by rm715)
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What's the volume of the sphere in terms of r? What about the cylinder in terms of r and h?

Equate those two expressions and solve for h.
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rm715
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(Original post by Zacken)
What's the volume of the sphere in terms of r? What about the cylinder in terms of r and h?

Equate those two expressions and solve for h.
but I can't solve them
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Zacken
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(Original post by rm715)
but I can't solve them
You'll need to show me what you have.
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