In Figure 1 :-
- In figure 1 , we have given everything we don't need to determine anything in figure 1
In Figure 2 :-
- Here, we have to determine the measure of sides ,braces and angles with least number of known measures,
Let's start ,
From the figure, we can assume the beam forms as AD, BC, EF , GH and so on.
Therefore,
So,
Or,
Now, By using similarity theorem we can determine their sizes, braces and angles that is,
Answer 1 :-
For answering the above questions we use knowledge and practices regarding the questions we can do the activity by making figures of unknown sides by assuming it in the form of x, y.so that we can find the known values.
Answer 2 :-
The best way of solving the above questions is that it is already given in the question that the beam is symmetrical so, here we can use similarity theorem.
Answer 3 :-
It necessary to learn about trapezoid and it's properties because if we don't know the properties and what is trapezoid then we will not be able to answer the given question.
Some properties of trapezoid
- the base angles of isosceles triangle are equal
- Two sides are parallel
Answer 4 :-
Well, The answer is very easy that if we don't know anything regarding the trapezoid then we will not be able to any question based on it and if we have incomplete knowledge about it then we will able to solve it but we always got incorrect answers most probably.