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Use the diagram at the right to answer questions 7-11.

7. Find the measure of a
8. Find the measure of b.
9. Find the measure of e.
10. Find the measure of h.
11. Find the measure of i.

Use the diagram at the right to answer questions 7-11. 7. Find the measure of a 8. Find-example-1
User WizLiz
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1 Answer

2 votes

Answer:

7. a= 110°

8. b= 70°

9. e= 140°

10. h= 150°

11. i= 150°

Explanation:

I put the following rules in case you forgot them:

First Rule : Sum of angles of the triangle is 180°.

um of angles of the triangle is 180°

Second Rule : Sum of supplementary angles (angles of straight angle) is 180°.

Third Rule : Vertically Opposite Angles are equal.

7. Find the measure of a

a= 180° - 30° - 40° = 110° (using first rule i wrote it above)

8. Find the measure of b.

b= 180° - a = 180°- 110°= 70° (using second rule where a and b are supplementary angles)

9. Find the measure of e.

e= 180° - 40°= 140° (second rule where angles 40° and e are supplementary)

10. Find the measure of h.

h= 180° - 30°= 150° (second rule where h and the angle 30° are supplementary angles)

11. Find the measure of i.

i = h = 150° (third rule where i and h are vertically opposite angles)

Hope this helps.. Good Luck!

User Subhajit
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7.6k points