الدائرة : قياس الزوايا و الأقواس- حل مسائل 2

The video tutorial explains how to find the value of x in two different circle diagrams. It begins by introducing the problem and identifying the location of x. The instructor explains that the sum of central angles in a circle is 360 degrees. In the first shape, x is calculated by subtracting the sum of given angles from 360 degrees, resulting in x being 50 degrees. In the second shape, a similar method is used, and x is found to be 145 degrees.

What is the total sum of central angles in a circle?

• 360 degrees

• 90 degrees

• 180 degrees

• 270 degrees

If the angles in a circle are x, 145, and 165 degrees, what is the value of x?

• 50 degrees

• 80 degrees

• 70 degrees

• 60 degrees

What is the sum of the angles 145 and 165 degrees?

• 300 degrees

• 330 degrees

• 310 degrees

• 320 degrees

In the second shape, what is the sum of the angles 85, 40, and 90 degrees?

• 205 degrees

• 235 degrees

• 215 degrees

• 225 degrees

What is the value of x in the second shape if the angles are x, 85, 40, and 90 degrees?

• 155 degrees

• 165 degrees

• 145 degrees

• 135 degrees