Math · Age 11 · Geometry
Angle Sums in Triangles & Quadrilaterals (Ex. 3)
Find angles in polygons and triangles with ratio-based problems.
Module
Geometry
Age
Age 11
Duration
10 min
Questions
5
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Question 1
Multiple choice
Each interior angle of a regular hexagon measures…
Question 2
Multiple choice
A triangle has angles in ratio 1:2:3. What is the largest angle?
Question 3
Multiple choice
An isosceles triangle has base angles of 72° each. What is the apex angle?
Question 4
Sequence
Interior angle sum of a regular pentagon: (5−2) × 180 = ____°. Each angle = 540÷5 = 108°.
Question 5
True or false
The sum of exterior angles of any polygon is 360°.