U3C1: Triangle Basics

Question 1

scalene triangle

Answer 1

all three sides have different measures

Question 2

isosceles triangle

Answer 2

at least two sides have equal measure

Question 3

equilateral triangle

Answer 3

all three sides with same measures

Question 4

acute triangle

Answer 4

all acute angles

Question 5

obtuse triangle

Answer 5

one obtuse angle and two acute angles

Question 6

right triangle

Answer 6

one right angle and two acute angles

Question 7

triangle sum theorem

Answer 7

in any triangle, the sum of the three interior angles equals 180 degrees

Question 8

exterior angle theorem

Answer 8

an exterior angle is equal to the sum of the two remote interior angles

Question 9

what do you know about the base angles of an isosceles triangle?

Answer 9

they have equal measure

Question 10

what do you know about the angles of an equilateral triangle, and what is it called?

Answer 10

all three angles have equal measure, also known as equiangular