Question

If the length and the breadth of the rectangle is 12 cm & 9 cm. Find the sum of the length of both the
diagonals of the rectangle​

Answer 1

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Answer 2

rectangle diagram :

Answer:

The length of diagonal in a rectangle.

AC=21cm.and DB=21cm.

Those length of diagonal is equal.

Given:

1)The length of the rectangle = 12cm.

2) The breath of the rectangle=9 cm.

To find:

1) Find the length of the diagonals in a rectangle.

Step-by-step explanation:

1) The length of the rectangle = 12 cm.

2) The breath of the rectangle= 9 cm.

*since then find the length of the diagonals in a rectangle with the help of pythogorus theorem.

so apply the pythogorus theorem.

since we denote the rectangle with A and B and C and D is length of the rectangle. And B and C

and D and A is the breath of the rectangle.

A and C and B and D is the diagonals of the rectangle.

*so in this rectangle was divide into two right angle triangle.

1) one is A B and C right angle triangle.

so apply the pythogorus theorem.

AC= AB+BC.

? =12. +9

AC=21cm .

since the length of AC diagonal is 21cm.

2) second is D A and B right angle triangle.

DB=BA+AD.

? =12. +9.

DB=21cm

since the length of DA diagonal is 21 cm.

Hence find the length of the diagonal in a rectangle