What is the surface area of the cone below with radius 9 cm and height 12 cm?
1 answer:
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Given:
The inequality is:
To find:
The values that make the given inequality true.
Solution:
We have,
It means the value of h must be less than or equal to 2.
In the given options, the list of numbers which are less than or equal to 2 is
-6, -3, -1, 1, 1.9, 1.99, 1.999, 2
The list of numbers which are greater than 2 is
2.001, 2.01, 2.1, 3, 5, 7, 10
Therefore, the first 8 options are correct and the required values are -6, -3, -1, 1, 1.9, 1.99, 1.999, 2.