Which of the following theorems on triangle inequalities states that the measure of an exterior angle of a triangle is greater than the measure of either remote interior angle?

• Hinge Theorem or SAS Inequality Theorem

• Triangle Inequality Theorem

• Angle-Side Relationship Theorem

• Exterior Angle Inequality Theorem

Refer to the figure , which side of ΔSET is the longest?

• SE

• ET

• ST

• Cannot be determined

In Δ FRY, which of the following shows the correct arrangement of its sides in ascending order?

• FY, FR, RY

• FY, RY, FR

• FR, RY, FY

• RY, FR, FY

In ∆RPN, what are the two remote interior angles of the exterior angle?

• ∠P and ∠R

• ∠R and ∠N

• ∠R and ∠P

• ∠P and ∠N

Which is true about the third side of the two triangles at the right?

• CB > EF

• CB < EF

• CB = EF

• CB ≤ EF

In ∆STU, what is the measure of the exterior angle?

• 25⁰

• 97⁰

• 120⁰

• 36⁰

Which of the following could NOT be used as the length of the sides of a triangle?

• 3, 3, 3

• 3, 5, 10

• 10, 20, 20

• 5, 7, 9

A triangle has side lengths of 6 and 12; what are the possible lengths of the third side?

• The third side must be greater than 20 but less than 4

• The third side must be greater than 6 but less than 18.

• The third side must be equal to 18.

• The third side must be equal to 6.

In ∆BAC, which of the following statement/s is/are true?

I. ∠A is the largest angle.

II. ∠B is the smallest angle

III. ∠C is the smallest angle

IV. ∠A ≤ ∠C

• I and II

• IIIonly

• IV only

• III and IV

What do you call those two coplanar lines that do not intersect?

• supplementary

• congruent

• complementary

• parallel