1) Angles in this type of triangle add up to 180°. a) equilateral triangle b) scalene triangle c) isosceles triangle 2) The perimeter of the equilateral triangle is 48 cm. What is the length of each side? a) 48 cm b) 19 cm c) 16 cm 3) What does the 𝓪 represent in the image shown? a) All sides are not the same. b) All sides are the same. c) One side is equal to 𝓪. 4) What is the perimeter of the triangle? a) 20 m b) 60 m c) 6 cm 5) Is a triangle a polygon? a) b) 6) When the interior angles of a triangle are the same. It is known as an equiangular triangle. a) TRUE b) FALSE 7) Which of the following represents an equiangular triangle? a) b) c) 8) Obtuse, acute, and right are triangles classified using  a) sides b) length of line c) angle of degrees 9) An equiangular triangle can be a) an acute triangle b) a right-angle triangle c) an obtuse triangle 10) Look at the diagram. What is labeled a? a) side b) vertex c) angle

2D Shapes - Triangles 1

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