Using properties of parallel lines and alternate interior angles, we can show the sum of the interior angles for a triangle is 180°. 1. For △ABC shown above, let line DE, containing vertex C, be parallel to side AB. Since ∠DCE is a straight angle, ∠ECA + ∠DCB + ∠BCA = 180°. Dont answer this :)

Wait- am I supposed to answer this... or nah..

:P

Uhm.... the answer is.. °

This 100% wrong.. :)

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

i can't see the picture : /