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2 years ago

How many degrees is Arc DC

Mathematics

2 answers:

Oxana [17]2 years ago

7 0

23 is the answer......

kkurt [141]2 years ago

6 0

Answer:13

Step-by-step explanation:

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Im confuesd with this question so can you please help thanks!

stepladder [879]

Answer:

It's asking you to pick the answer that is closest to the circumference. But before you just pick any answer you need to find the circumference of the circle.

Step-by-step explanation:

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3 years ago

Read 2 more answers

What are the special right triangle measures?

erik [133]

The hypotenuse is 2x, the base is x*sqrt(3) and the left base if x

5 0

2 years ago

Which fraction is closer to than 1?<br> 7/8<br> 10/12<br> 12/14<br> 7/10

Zigmanuir [339]

Answer:

7/8

Step-by-step explanation:

The fraction closest to 1 is 7/8 because it is only 1/8 piece away from one.

3 0

2 years ago

Need help with this chart read carefully

irinina [24]

Answer:

10=60 5=30

Step-by-step explanation:

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3 years ago

Triangle ABC has a right angle at C. Select all measurements which would mean it has a hypotenuse with a length of 10 units. a.

Delvig [45]

Option d: Angle A is 30 degrees, BC is 5 units

Option e: AC is 8 units, BC is 6 units

Explanation:

The triangle ABC has a right angle at C.

The length of the hypotenuse is 10 units.

The image of the triangle with this measurement is attached below:

Option a: Angle A is 20 degrees, BC is 2 units

$\begin{aligned}\sin 20 &=\frac{2}{h y p} \\h y p &=\frac{2}{\sin 20} \\&=5.8476\end{aligned}$

Since, hypotenuse is 10 units, Option a is not correct answer.

Option b: AC is 7 units, BC is 3 units

$\begin{aligned}A B &=\sqrt{7^{2}+3^{2}} \\&=\sqrt{49+9} \\&=\sqrt{58}\end{aligned}$

Since, hypotenuse is 10 units, Option b is not correct answer.

Option c: Angle B is 50 degrees, BC is 4 units

$\begin{aligned}\cos 50 &=\frac{4}{h y p} \\h y p &=\frac{4}{\cos 50} \\&=6.222\end{aligned}$

Since, hypotenuse is 10 units, Option c is not correct answer.

Option d: Angle A is 30 degrees, BC is 5 units

$\begin{aligned}\sin 30 &=\frac{5}{h y p} \\h y p &=\frac{5}{\sin 30} \\&=10\end{aligned}$

Since, hypotenuse is 10 units, Option d is the correct answer.

Option e: AC is 8 units, BC is 6 units

$\begin{aligned}A B &=\sqrt{8^{2}+6^{2}} \\&=\sqrt{64+36} \\&=\sqrt{100} \\&=10\end{aligned}$

Since, hypotenuse is 10 units, Option e is the correct answer.

Thus, Option d and e are the correct answers.

3 0

3 years ago