Foundation Mathematics Primary 5 Geometry

The Jurong East CC has a stage banner in the shape of a parallelogram ABCD. Angle DAB = 65°. What is angle ABC?

A 115°
B 65°
C 130°
D 295°
Show Worked Solution

Worked Solution

Step 1: Recall the property — in a parallelogram, co-interior (adjacent) angles add up to 180°. Step 2: Angle DAB + Angle ABC = 180° Step 3: 65° + Angle ABC = 180° Step 4: Angle ABC = 180° − 65° = 115° Answer: 115°

Correct answer: 115°

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free