The two cones are similar. Find the surface area of the larger cone. Round your answer to the nearest hundredth. A.810.28cm squa
red. B.847.80cm squared. C.868.30cm squared. D.886.25cm squared
2 answers:
The correct answer is letter C. 868.30 cm^2 (centimeter squared)
See attached figure for reference of the two cones.
Solution:
Find first the radius.
To find the radius we must multiply 13.8 to 4.6 and multiply it by 3.7
Thus,
(13.8 / 4.6) x 3.7 = 11.1
To find the surface area of the larger cone we use this formula:
((pi x rad x slide length) + (pi x rad^2))
Where:
rad or radius = 11.1
slide length = 13.8
((pi x 11.1 x 13.8) + (pi x 11.1^2)) = 868.30 cm^2
See attached figure for reference of the two cones.
Solution:
Find first the radius.
To find the radius we must multiply 13.8 to 4.6 and multiply it by 3.7
Thus,
(13.8 / 4.6) x 3.7 = 11.1
To find the surface area of the larger cone we use this formula:
((pi x rad x slide length) + (pi x rad^2))
Where:
rad or radius = 11.1
slide length = 13.8
((pi x 11.1 x 13.8) + (pi x 11.1^2)) = 868.30 cm^2
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Answer:
<em></em>
- <em> Variable</em>
- <em> Variable expression</em>
- <em> Number</em>
Explanation:
A <em>literal equation</em> contains numbers, letters, and signs.
The letters represent variables, the numbers are constants, and the sign express relations, like equal (=), less than (<), and greater than (>).
You use the signs to make equations or inequalities.
Algebra is the use of mathematical rules applied to literal expressions. You can add, subtract, multiply and divide literal, expressions, like in arithmetic, following some rules.
<em>To rewritte a literal equation in terms of a specific variable</em>, you may need to <em>divide by</em> <em>another variable, a variable expression, or a number</em>, but never by an inequality sign.
Here you have one example for each case:
<u>1. Dividing by another variable.</u>
<u> 2. Dividing by a variable expression.</u>
<u>3. Dividing by a number:</u>
As said above, you cannot divide by an inequality sign.