Question

i need help on how to do this.

Answer 1

Answer:

by what i can see.. all of the figures in the photos are parallelogram.. if you dont know how to solve theses.. then i guess you dont know the properties of parallelogram.. so here are the properties

Step-by-step explanation:

1 A diagonal of a parallelogram divides it into two congruent triangles

2 Diagonals of a parallelogram bisect each other.

3 Opposite sides are congruent

4 Opposite angles are congruent

5 Consecutive angles are supplementary (supplementary means the summ of consecutive angles is 180⁰)

6 If one angle is right angle, then all angles are right.

using these try to solve them on your own.. they all are really easy... All the best!!

Answer 2

Answer:

3)x=9;y=15

4) n=12; m+1=6, m=6-1=5

5) z-8=20, z=38; 105=d-21, d=105+21=126

6) g+4=65, g=65-4=61; 16-h=7, h=16-7=9

17) 2m=70, m=70/2=35 n=180-70=110

18) (b-10)+( b+10)=180

b-10+b+10=180 [just opened the brackets]

2b+ 0 =180 [10-10=0]

b =180/2=90

b-10=c, 90-10=c, c=80

b+10=d, 90+10=d, d=100

19) m=8, k+4=11, k=11-4=7

Step-by-step explanation:

questions 3,4,5,6 - opposite sides are of same length

questions 5,7,17 ,18,19- opposite angles are same

questions 17, 18- sum of adjacent angles, that is angles on the same side are 180 degree, that is when we add the adjacent angles we will get 180.

Since the parallelogram is a quadrilateral [ 4 sided closed figure] sum of all angles are 360degree