2 years ago

Please help with this!!!

Mathematics

1 answer:

a_sh-v [17]2 years ago

8 0

Answer:

z = 123.9

Step-by-step explanation:

We can use trigonometric functions, because we have a right triangle. We now the adjacent and opposite side of the angle we are interested in, so we can use the tan function.

tan 20 = opposite/ adjacent

tan 20 = 45.1/z

Multiply each side by z

z* tan 20 = 45.1 /z * z

z * tan 20 =45.1

Divide each side by tan 20

z = 45.1 / tan 20

z=123.9112316

To one decimal place,

z = 123.9

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