Question

if the figure rectangle with sides 8cm and 4cm find the measure of diognal​

Answer 1

Answer:

Measure of Diagonal = 10 cm

Step-by-step explanation:

Length of rectangle = 8 cm

Breadth of rectangle = 4 cm

As the angles formed by rectangle are right angles

Thus the diagonal will be the hypotenuse.

By pythagoras theorem,

(Diagonal)² = l² + b²

= 8² + 4²

= 64 + 36

= 100

Therefore, taking square root,

Diagonal = 10 cm

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Answer 2

in this image I have take C=90° because all angles of rectangle are 90°

BD is diagnol and its value is given

also, for solving it quickly just remember that

diagnol of rectangle= whole under root ( Lsquare + Bsquare)

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