is not similar to the triangle because it is not written in correct order. The way we write the triangle (order of vertices) is very important. Since angles K of both the triangles are not equal, therefore, order is messed up. If the order had been then this would have been correct.
is not similar to triangle because the corresponding angles are not equal. Again the order it not right. If the order had been , then this option would have been correct.
is similar to the given triangle because corresponding angles of both the triangles are equal.
is not similar to the given triangle because the corresponding angles of the two triangles are not equal.
The missing number is the square-root of the constant term on the left-hand-side, which equals sqrt(1/16)=1/sqrt(16)=1/4. Check: (x+1/4)^2=x^2+2*(1/4)x+(1/4)^2=x^2+x/2+1/16. ok
This problem is set up so that the total price is proportional to the price per pound, so to find the proportion you would divide the total cost by the cost per pound. 3.42/2.85 = 1.2, so the answer is 1.2 pounds.