Question

prove that the sum of the angles of triangle is 180°

Answer 1

$<b>hey there..!!$

$\huge\boxed{\red{\bold{ANSWER}}}$

$\small\boxed{\red{\bold{The /: sum /: of /: all /: angles /: are /: triangle /: is/: 180°}}}$

✴ GIVEN : ∆ PQR with angles 1 , 2 , 3h

✴ PROVE : Angle 1 + 2 + 3 = 180°

✴ CONSTRUCTION : Draw a line XY passing through P parallel to QR

✴ PROOF :

• For lines XY and QR, with transversal PQ

angle 2 = angle 4 ......(alternate angles. 1 )

• For line XY and QR, with transversal PR

angle 3 = angle 5. .......(alternate angles. 2 )

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#Be brainly

Answer 2

Answer:

hope it helps a lot mate