3 years ago

Solve for the missing angles in the diagram below

Mathematics

1 answer:

Alexandra [31]3 years ago

4 0

Answer:

∠8 = 40°, ∠6 = 50°, ∠9= 140°

Step-by-step explanation:

∠8 = 40° (vertically opposite angles are congruent)

now, using angle sum property of triangles

∠6 + 90° + 40° = 180°

∠6 = 180° - 130°

∠6 = 50°

and, using exterior angle property,

50° + 90° = ∠9 = 140°

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