Classify the triangle.obtuseequiangularrightacute
2 answers:
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Answer:
(b)
or
Step-by-step explanation:
Given
See attachment for complete question
Required
Determine the volume of the cone
The volume of a square pyramid is:
Where
a = base dimension
From the attachment, the base dimension of the square pyramid is 2r.
So:
The volume becomes;
To calculate the volume of the cone, we simply multiply the given ratio and the volume of the prism.
So, we have:
Open bracket;
Cancel out 4
The above can be written as:
So, we have:
or
225 serves because you need to set up a proportion. The proportion is 2/5=90/x then solve for x by cross multiplying, which gives you 450=2x. Then divide 450 by 2 which gives you 225. Work shown in the attached picture.
