88.5k views
4 votes
Help me with geometry practice . DN=O NOT ANWSER IF YOU DON'T KNOW.

Help me with geometry practice . DN=O NOT ANWSER IF YOU DON'T KNOW.-example-1

1 Answer

2 votes

Answer: See Below

Explanation:

there is a ton of information here to get through

<a is 34 (half of 68)

<C is 56

  • triangle YRC is iscocles, YR and RX are both radius, so they are equal.
  • So the base angles must be equal as well.
  • we know that the central angle is 68, because arc YX is 68.
  • to find the measure of angle C use the equation 2x+68=180 (2 of the same angle (x) + 68 makes all the angles in the triangle.
  • 2x=180-68
  • 2x=112
  • x=56

Skip E until the end

<G is 84

  • <G and the angle that is 96 make a linear pair
  • <G + 96=180
  • <G=84

Arc YS is 112

  • Arc YS is = <R
  • find <R
  • <R and the angle across from ARC YX are a linear pair
  • <YRX is 68
  • <R+68=180
  • <R is 112

<D and F are 42

  • <D and <F are the base angles of an isosceles triangle (2 sides are the radius again)
  • the central angle in this case is 96
  • 2x+96=180
  • 2x=84
  • x= 42
  • so both D and F are 42

now <E is 96

  • measure of an angle outside the circle with 2 rays touching the circle is the measure of the larger arc of the circle minus the smaller arc divided by 2
  • the measure of the smaller arc is the same as <G
  • smaller arc is 84
  • the larger arc is 360-84
  • the larger arc is 276
  • 276-84= 192
  • divide by 2 to get <E
  • 192/2=96

User Canaan Seaton
by
5.0k points