Solution

155073

Problem / game
Trapezium Arch Back to problem
First name
Toby Gale
School
Chairo Christian School
Country
Australia
Age
12

There are 20 inner angles all up so to find out the smallest angle you have to divide 180 degrees which is made up of the trapeziums by 20 and the answer is 9 so then you take 9 off 90 degrees which then leaves you the answer of 81 and that is the smallest angle on the trapezium.