A rectangular room is 1.4 times as long as as it is wide and its perimeter is 33 meters find the dimension
1 answer:
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Correct option B) .
<u>Step-by-step explanation:</u>
We have the following figure attached as shown below.
Now, this triangular prism have 2 similar right angled surfaces and 3 rectangular surfaces , Let's calculate area for all of them:
2 similar right angled surfaces
We know that area of triangle =
⇒
⇒
⇒
But there 2 such surfaces so ,
3 rectangular surfaces
Area of rectangle =
⇒
⇒
⇒
⇒
⇒
⇒
Total area =
Adding area of 2 similar right angled surfaces & 3 rectangular surfaces:
=
Correct option B) .
Answer:
Last option is the correct choice.
Step-by-step explanation:
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