Question

Please solve this question but please don't give improper answer​

Answer 1

Answer:

c)405°

Step-by-step explanation:

as it is square,clearly we can say ,

<7=<5=<3=45°,

<4+<8=90°,

<1+<9=90°,

<2+<6=90°,

therefore,<k=90*3+45*3=405°.

Hope it helps u...

Answer 2

Answer:

The total value =405°

TanL1=3/1=3

TanL2=3/2

TanL3=3/3=1

TanL4=2/1=2

TanL5=3/3=1

TanL6=2/3

TanL7=3/3=1

TanL8=1/2

TanL9=1/3

Therefore Tan^-13/1+Tan^-1 1/3= pi/2

Tan^-1 3/2+Tan^-1 2/3=pi/2

Tan^-1 1/2+Tan^-1 1/2=pi/2

L3=L5=L7=45°

Therefore L1+L2+L3+L4+L5+L6+L7+L8+L9=3(90°)+3(45°)=270°+135°=405°