100 POINTS Another friend claims that you can use the cosine ratio to find the height of the platform. Explain why his approach is or isn’t a reasonable approach to finding the height of the platform.

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

Multiplying fractions by whole number 5 x 1/3=?

If jklm is a trapezoid, which statements must be true?