Question

prove that each of the four angle of a rectangle is right angle​

Answer 1

Answer:

Step-by-step explanation:

in rectangle all angles are equal

so all angles are equals

∠a+∠b+∠c+∠d =360

4∠a=360

∠a=90

hence all angles are equal and they are 90

after seeing it please comment it

Answer 2

AnswEr:

$\huge\underline\bold{Given:-}$

A rectangle ABCD such that $\angle$ A = 90°.

$\huge\underline\bold{To\:Prove:-}$

$\angle$ A = $\angle$ B = $\angle$ C = $\angle$ D = 90°

$\huge\underline\bold{Proof:-}$

Since ABCD is a rectangle

$\therefore$ ABCD is a parallelogram

$\implies$ AD || BC

$\therefore$ $\angle$ A + $\angle$ B = 180°

• $\sf{[Sum\:of\:the\:interior\:angles\:on}$

$\sf{the\:same\:side\:of\:a\:transversal\:is\:180]}$

$\implies$ 90° + $\angle$ B = 180°

$\implies$ $\angle$ B = 90°

Similarly we can show that angle C = 90° and angle D = 90°

Hence, all the four angles of rectangle is of 90°

#BAL

#Answerwithquality