
Each rectangle is cm long and cm wide; they share a common diagonal of PQ. How do you show that ?

Answer
453.3k+ views
Hint: Here we have to find the value of , where we will follow the rule of congruence of triangle. By which we get two triangles that are congruent. After that we will find the ratio of sides that would be equal because both the triangles are congruent. From the above step, we can see that the lines are equal also. So, we will use them to get the value of .
Complete step-by-step answer:
First of all we will name the diagram so that it will be easy to proceed further.
So, the diagram will be as:
From the diagram, we can see that the value of :
…
Since, we have some values from the question that are:
cm
And
cm
So, the equation will be as:
…
For value of , we will follow the below procedure as:
Here, from the diagram we can say that the triangle and are congruent on the basis of Right Angle-Hypotenuse-Side rule so that we can write it as:
Since, we know that the triangle and is congruent. So, the sides are equal as:
And
Since, is a right angle triangle, we will use Pythagoras Principle as:
…
Since, we can see from the diagram that:
Since, It is given that , the above equation will be as:
We can get the value of in the term of as:
Since, we know that from the congruent rule. So, the above equation will be as:
Now, put the value of in the equation . So we will get the equation as:
Here, we will open the bracket by using formula , the above equation will as:
Here, will be cancel out and the above equation can be written as:
Since, we have , then the above equation would be:
Now, we will do the required calculation:
Here, we chance the place of equation as:
Since, we got the value of , we will apply it in equation
The above equation can be written as:
Hence, we had the value of as .
Note: Here, we will check that the solution is correct or not in the following way:
Since, we have the value of for the triangle from the solution that is:
…
In the triangle , we know that:
…
From the equation and , we have:
…
This implies that –
And
But given that
That means the above value is wrong. So we will multiply by in equation :
We can write the above equation as:
Now, we have the correct values as:
And
Complete step-by-step answer:
First of all we will name the diagram so that it will be easy to proceed further.
So, the diagram will be as:

From the diagram, we can see that the value of
Since, we have some values from the question that are:
And
So, the equation
For value of
Here, from the diagram we can say that the triangle
Since, we know that the triangle
And
Since,
Since, we can see from the diagram that:
Since, It is given that
We can get the value of
Since, we know that
Now, put the value of
Here, we will open the bracket by using formula
Here,
Since, we have
Now, we will do the required calculation:
Here, we chance the place of equation as:
Since, we got the value of
The above equation can be written as:
Hence, we had the value of
Note: Here, we will check that the solution is correct or not in the following way:
Since, we have the value of
In the triangle
From the equation
This implies that –
And
But given that
That means the above value is wrong. So we will multiply by
We can write the above equation as:
Now, we have the correct values as:
And
Latest Vedantu courses for you
Grade 10 | CBSE | SCHOOL | English
Vedantu 10 CBSE Pro Course - (2025-26)
School Full course for CBSE students
₹35,000 per year
Recently Updated Pages
Express the following as a fraction and simplify a class 7 maths CBSE

The length and width of a rectangle are in ratio of class 7 maths CBSE

The ratio of the income to the expenditure of a family class 7 maths CBSE

How do you write 025 million in scientific notatio class 7 maths CBSE

How do you convert 295 meters per second to kilometers class 7 maths CBSE

Write the following in Roman numerals 25819 class 7 maths CBSE

Trending doubts
State and prove Bernoullis theorem class 11 physics CBSE

What are Quantum numbers Explain the quantum number class 11 chemistry CBSE

Write the differences between monocot plants and dicot class 11 biology CBSE

1 ton equals to A 100 kg B 1000 kg C 10 kg D 10000 class 11 physics CBSE

State the laws of reflection of light

One Metric ton is equal to kg A 10000 B 1000 C 100 class 11 physics CBSE
