Express cos J as a fraction in simplest terms.

Step-by-step explanation:

You need JL. Use the Pythagorean Theorem to get it.

a^2 + b^2 = c^2

a = 9

b = 40

c = ?

9^2 + 40^2 = c^2

c^2 = 1681

sqrt(c^2) = sqrt(1681)

c = 41

Cos(j) = adjacent / hypotenuse

adjacent = 9

hypotenuse = 41

Cos(J) = 9 / 41

answer: what do you mean

multiply length by height. multiply the length by the height, and then double the product. work out 10 x 10 results = 100 square inches, then work out 100 x 2 = 200. the answer is 200 square inches.

step-by-step explanation: