1 If 3n + 7 = 25, then find the value of the expression 8n - 3 2 In ∆ DEF and ∆ XYZ, DE = XY, angle E = angle Y and EF = YZ. Name the
test of congruency by which both the triangles are congruent.
3 The equation for the statement ‘The sum of seven times m and
fourteen gives 77’ is _.
4 The base of a triangle is 18 cm and its area is 36 sq. cm. The height of
the triangle is _ cm.
5 If two triangles are congruent under the correspondence P ↔ Y , Q ↔
Z , R ↔ X , then it can be said that ∆ PQR ≅ _

1) 45

2) SAS (Side Angle Side)

3) 9

4) 4

5) Triangle YZX

6) 63 degrees

Step-by-step explanation:

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.