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ANSWER

EXPLANATION

The given triangle has a right angle.

The side opposite to the 45° angle is 7 units.

To find angle x, we use the tangent ratio.

Recall the mnemonics TOA, which means,

To find y, we use the sine ratio, which means

see explanation

Step-by-step explanation:

Using the trig. ratios in the right triangle and

tan45° = 1, sin45° = , then

tan45° = =

Multiply both sides by x

x × 1 = 7 ⇒ x = 7

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sin45° = =

Multiply both sides by y

y × sin45° = 7 ( divide both sides by sin 45° )

y = 7 / sin45° = 7 / 1/ = 7

true

step-by-step explanation: