43.4k views
1 vote
ASAP!!!!

Find the missing angle values show work.complete sentence

A. Angle a = ____
b. angle b = ____
c. angle c = ____
d. angle d = ____
e. These angles together make a complete rotation/a circle.What do you get when you add all the angles together.What does this number have to do with a circle?



ASAP!!!! Find the missing angle values show work.complete sentence A. Angle a = ____ b-example-1
User Zdtorok
by
6.0k points

2 Answers

4 votes

Answer:

Explanation:

Angle a = 35°

Angle b = 40°

Angle c = 35°

Angle d = 70°

When you add all the angles together, you get 360°. This number has to do with a circle because 360° is the total number of degrees in a circle, half of a circle would be 180°.

Hope this helps!

User Roslyn
by
7.0k points
2 votes

Answer:

∠a = 35

∠b = 40

∠c = 35

∠d = 70

Explanation:

∠b = 40 {Vertical angles are congruent}

∠d = 70 {Vertical angles are congruent}

∠1 = ∠ a

∠2 = ∠c

∠1 = ∠2

So, ∠1 =∠2 = ∠a = ∠c

70 + 40 + ∠a + ∠2 = 180 {Straight line angle}

110 + 2∠a = 180 {∠a =∠2}

2∠a = 180 - 110

∠a = 70/2

∠a = 35

∠1 =∠2 = ∠a = ∠c = 35

e) When we add all the angles, we get 360.

User Masaers
by
6.5k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.