A pair of congruent triangles are shown at the right, as marked., then _____.

Given the triangles ABC and DEF as shown at the right. In addition to the markings, AF = CD. Identify which method is NOT to be used to prove the triangles congruent.

MathematicsGrade9

In triangle PQR, $angle P equals angle R$ and PR = 7 cm, PQ = 6 cm, then the length of QR is _____.

In triangles ABC and DEF, AB = FD and ∠A = ∠D. The two triangles will be congruent by SAS axiom if

In the given figure, if the exterior angle is 135^o, then ∠P is

In the given figure, PS is the median, bisecting angle P, then $angle$ QPS is

Number of acute angles in a right triangle are ____________.

$I n space a space r i g h t minus a n g l e d space t r i a n g l e comma space t h e space m e a s u r e space o f space o n e space a n g l e space i s space 90 degree. N o w comma space t h e space s u m space o f space a l l space t h e space a n g l e s space o f space a space t r i a n g l e space i s space 180 degree L e t apostrophe s space c o n s i d e r space t h e space t r i a n g l e space t o space b e space triangle A B C. H e n c e comma angle A space plus space angle B space plus space angle C space equals space 180 degree 90 degree space plus space space angle B space plus space angle C space equals space 180 degree space angle B space plus space angle C space equals space 180 degree space minus space 90 degree space angle B space plus space angle C space equals space 90 degree H e r e comma space n o space a n g l e space c a n space b e space 0 degree space i n space a space t r i a n g l e. space H e n c e comma space t h e space o t h e r space t w o space a n g l e s space o f space t h e space t r i a n g l e space w i l l space b e space a c u t e space a n g l e s.$

Number of acute angles in a right triangle are ____________.

The hypotenuse of a right triangle is 37 cm long. If one of the remaining two sides is 12 cm in length, then the length of the other side is

These triangles are congruent. If $angle straight E text is end text 45 degree text and end text angle straight B text is end text 55 degree text , end text angle straight C$ is

These two triangles are congruent. If $angle C space i s space 40 degree$ , then the measure of $angle F$ is

The triangle sum theorem states that the sum of the angles of a triangle equal how many degrees?

$angle A$ is called _________.

Are these triangles congruent? If so, why?

MathematicsGrade9

Do we have enough information to say these two triangles are congruent? If so, what allows us to say this?

Can the HL congruence theorem be used to prove the triangles congruent? If so, write a congruence statement.