Which angle is included between the sides DE and EF of ΔDEF?

By applying SAS congruence rule, you want to establish that ΔPQR ≅ ΔFED. It is given

that PQ = FE and RP = DF. What additional information is needed to establish the

congruence?

Which congruence criterion do you use in the following?

Given: AC = DF, AB = DE, BC = EF. So, ΔABC ≅ ΔDEF

ΔABC and ΔPQR are congruent under the correspondence ABC ↔RQP. Write the parts of ΔABC that correspond to PQ.

Which congruence criterion do you use in the following?

Given: ZX = RP, RQ = ZY, ∠PRQ = ∠XZY. So, ΔPQR ≅ ΔXYZ

If two line segments are ___________, they have the same length.

The side opposite to the right angle is called the _________ of the right-angled triangle.

The sum of an exterior angle of a triangle and its adjacent interior angle is ________.

The three angles of a triangle are in the ratio 1:2:1. Measure of the largest angles of the triangle is ------------.

Find the supplement of 105 ^o.

Angle opposite to the side LM of Δ LMN

An_______ is formed when lines or line segments meet.

According to Pythagoras property, in a right-angled triangle, the square on the ______ = sum of the squares on the legs.

You want to show that ΔART ≅ ΔPEN, if you have to use SSS criterion, then you need to show AR =

Which angle is included between the sides DE and EF of ΔDEF?