Question

Answer the question below.

Answer 1

Answer is.

• 20

Step-by-step Step-by-step explanation:

Here we are given central angle of the circle is 85°

Length of arc is 4x - 5.

Since measure of central angle is equal to measure of an arc of the circle.

Then,

4x + 5 = 85

4x = 85 - 5

4x = 80

x = 80/4

x = 20

So, the value of x is 20

Answer 2

• D) 20

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In the given diagram, the central angle has same measure as given arc.

Hence we can set up the following equation:

• 4x + 5 = 85
• 4x = 80
• x = 20

The matching choice is D.