The volume will be larger than the surface area for any
satisfying the inequality
Since
must be true, we can divide through by
to get
Answer:c
Step-by-step explanation:
Anything divided by 0 is undefined
This is a perfect place to use Pythagoras' rule. When you do that, the answer rolls out immediately, and if you don't catch it , it falls off the edge of the desk.
Pythagoras' Theorem:
In a RIGHT triangle, the square of the longest side is equal to
(one short side)² + (other short side)² .
This is EXACTLY what you need, because MLN is a RIGHT triangle,
you know the length of both sort sides, and you need to find the
length of the longest side.
M = 5 , M² = 25
L = 12 , L² = 144
Add the squares together: 25 + 144 = 169
Pythagoras says that 169 is the square of N .
When you take its square root, you'll have the length of 'N'.
Option D, 63 cm
Explanation:
The scale of model is of local park is
This means that each dimension of the model is 21 times smaller than the actual park (to be developed in future)
Given -
Depth of the pond centi meter
Depth of the real pond will be 21 times of the depth of the model.
Thus , real pond's depth is equal to
cm
Hence, option D is correct
Area = 1/2 base x height
Area = 1/2 (2 x height) x height
Area = height x height
Area = height^2
100 = height^2
height = SquareRoot(100)
Height = 10
Base = 2 x height = 2 x 10 = 20