Find the value of m in the diagram above.
- \(40^0\)
- \(50^0\)
-
\(130^0\)
- \(140^0\)
The correct answer is: C
Explanation
∠EHI = ∠DEH = 40° (alternate angles are equal)
∠BEH = 90° (given)
∠BED = 90° - 40° = 50°
∠BEF = 180° - 50° = 130° (sum of angles on a straight line is 180o)
∠BEF = ∠ABE = 130° (alternate angles are equal)
∴ m = 130°