Question

4. Find the length of diagonal of a rectangle having sides 12 cm and 5 cm.
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Answer 1

Answer:

13

Step-by-step explanation:

because the diagnol divides the rectangle into two equal right angled triangles.

then diagnol is hypotenuse of each triangle.

then by pythagores theorem

$12 {}^{2} + 5 {} {}^{2} = 13 {}^{2}$

so diagnol length is 13

Answer 2

Answer:

13cm

Step-by-step explanation:

diagonal of rectangle = √l^2+b^2

so diagonal = √(12)^2 +(5)^2

= √144+25

= √169

therefore diagonal length is 13Cm

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