Conditions of a Triangle

Two angles of a triangle measured 78^o and 30^o. What is the measure of the third angle?

• 48^o

• 72^o

• 108^o

• 180^o

Nathan wants to draw a triangle. He knows that two of the side lengths are 5 inches and 7 inches. What is a possible length for the third side?

• 1 inch

• 2 inches

• 6 inches

• 100 inches

Jared is creating a flower garden in the shape of a triangle. Which could be the dimensions of the garden in feet?

• 2, 3 and 5

• 3, 7 and 9

• 4, 5 and 9.5

• 5, 6 and 12

Given 3 angles of 50 degrees, 60 degrees and 90 degrees, how many triangles can be created?

• No Triangle

• One Unique Triangle

• Many Triangles

Which set of angle measures could be the angles of a triangle?

• 25^o, 30^o, 35^o

• 35^o, 60^o, 75^o

• 45^o, 60^o, 75^o

• 60^o, 90^o, 120^o

A triangle has sides that measure 30 mm and 45 mm. Which statement is true about all possible lengths of the third side of the triangle?

• Third side is bigger than 30 but less than 45

• Third side is bigger than 15 but less than 75

• Third side is less than 30 but greater than 45

• Third side is less than 15 but greater than 75

Which set of side lengths would form a triangle?

• 2 in, 6 in, 8 in

• 2 in, 6 in, 10 in

• 4 in, 6 in, 8 in

• 4 in, 10 in, 15 in

Given side lengths of 12 inches, 5 inches and 7 inches, how many triangles can be created?

• No Triangle

• One Unique Triangle

• Many Triangles

Millie is drawing a triangle. One side has a length of 9 units, and another side has a length of 6 units. What could be the length of the third side of the triangle?

• 3 units

• 7 units

• 15 units

• 18 units

Which set of side lengths would not form a triangle?

• 3 cm, 4 cm, 5 cm

• 6 cm, 8 cm, 10 cm

• 10 cm, 12 cm, 24 cm

• 12 cm, 15 cm, 26 cm