Question

in the given fig. prove that x= a+b+c​

Answer 1

Answer:

180°

Step-by-step explanation:

x=a+b+c

sum of interior angle is equal to exterior angles.

x=180°

Answer 2

Answer

In the given figure, Prove that x = a + b + c.

Construction: We join B and D and produce to E

Proof:< 1 + < 2 =b and <3+ < 4=x … (i)

In ABD, <3 = < 1+ a [external angle property]

In BDC, <4 = < 2 + c [external angle property] … (ii)

Adding (i) and (ii), we get

<3+ < 4 = (<1+ < 2) +a +c

x= b + a + c using (i)

its the answer......