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aniked [119]
3 years ago
9

Aiden calculated the area of Triangle QRS finding half the product of 1.5 and 1.1. What error did Aiden make?

Mathematics
1 answer:
Gnom [1K]3 years ago
6 0
Aiden should have calculated 
area = (1.1 * 5.4) / 2
because triangle area = half the base times the altitude.

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The lateral surface area of cone A is equal to the lateral surface area of cylinder B.
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Answer:

TRUE

Step-by-step explanation:

Lateral area of cone is given by: πrl

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Here r=r and l=2h

Hence, lateral area of cone A= π×r×2h

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Lateral area of cylinder is given by: 2πrh

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Lateral area of cylinder B=2πrh

Clearly, both the lateral areas are equal

Hence, the statement that:The lateral surface area of cone A is equal to the lateral surface area of cylinder B. is:

True

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  see attached

Step-by-step explanation:

Apparently, you're being asked to identify the sequence of steps you would use to compute the volume of the pyramid.

It seems to be a good idea to start with the formula for the volume.

Then, recognize that you need to compute B, so make that computation. The area of the base (B) is the product of the base dimensions (14)(12).

Once you have the value of B, then you can put that, along with the value of h, into the original volume formula.

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<em>Additional comment</em>

If you're familiar with the pyramid volume formula, you know that you must compute B before you can make use of the formula. That makes the sequence be B=14(12); B=168; V=1/3Bh; V=1/3(168)(7).

However, if you're starting from scratch, it is probably good to begin with the volume formula. That is what tells you that you need to find B in the first place. This is the sequence we show below.

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