Math · Age 10 · Geometry
Angles in Triangles & Quadrilaterals (Ex. 2)
Calculate angles in quadrilaterals and special triangles.
Module
Geometry
Age
Age 10
Duration
10 min
Questions
5
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Question 1
Multiple choice
A quadrilateral has angles 90°, 85°, 95°, and ___.
Question 2
Multiple choice
An isosceles triangle has two angles of 70°. The third angle is?
Question 3
Multiple choice
A right-angled triangle has angles 90° and 35°. The third angle is?
Question 4
Sequence
Missing triangle angles: two angles are 50° and 60°→missing=70°; 60° and 70°→missing=50°; 70° and 80°→missing=___°.
Question 5
True or false
A quadrilateral's angles always add up to 360°.