Advanced Mathematics Primary 3 Angles

Siti draws a 6-sided shape on square grid paper. The shape has 3 right angles and 2 angles that are larger than a right angle. How many of the shape's angles are smaller than a right angle?

A 0
B 1
C 2
D 3
Show Worked Solution

Worked Solution

The shape has 6 angles in total. 3 angles are right angles. 2 angles are larger than a right angle (obtuse). Let the remaining angles be smaller than a right angle (acute). 6 − 3 − 2 = 1. So 1 angle is smaller than a right angle.

Correct answer: 1

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

Start Free Trial — 7 Days Free