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3 years ago

What is true of angles c and d?

Mathematics

2 answers:

lorasvet [3.4K]3 years ago

6 0

Answer:

C) the who angles are supplementary

Step-by-step explanation:

If you add the angles together it equals 180 degrees

jarptica [38.1K]3 years ago

5 0

A) The two angles are equal.

(INCORRECT) Angle c is obviously smaller than Angle d, so they are not equal.

B) The two angles are 90 degrees.

(INCORRECT) the angles are either acute or obtuse angles, so they are not right angles.

C) The two angles are supplementary.

(CORRECT) supplementary angles are two or more angles that equal 180. If you put the two angles together, it will become a straight angle.

D) The two angles are complementary.

(INCORRECT) complementary angles are when there are two or more angles that equal. Angles c and d do not equal a right angle.

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3 years ago

Please help me find the value of x the answer must be exact

jenyasd209 [6]

Answer:

$x=11$

Step-by-step explanation:

This is a 45°-45°-90° triangle. The two legs are the same length, and the hypotenuse is that length times the square root of two:

$leg=x\\hypotenuse=x\sqrt{2}$

Therefore, the value of x is 11.

You can double-check using the sine ratio:

$sineX=\frac{opposite}{hypotenuse}$

Insert the values:

$sin45=\frac{x}{11\sqrt{2} }$

Insert the equation into a calculator:

$x=11$

:Done

*It's important to know that, when working with trigonometry ratios, the hypotenuse is never considered the adjacent or opposite side, and the 90° angle is never used in the ratios.

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3 years ago

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yan [13]

Answer:

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Step-by-step explanation:

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3 years ago

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2 years ago

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2 years ago