Question

plzzzzzzzzz answer question 4

Answer 1

In the given figurea=4b (vertically opposite angles)                                                  Ray EO and BO stands on line CD                                                                         therefore, LCOE+LEOB+LBOD=180 (ANGLES ON A STRAIGHT LINE ADD UP TO 180)                                                                                                            70+b+4b=180                                                 70+5b=180                                                                          5b=110b=110/5=22 4b=22x4=88                                                                                                               Ray OA stands on line CD                                                                                                                               therefore, LCOA+LAOD=180 (LINEAR PAIR AXIOM)                                        88+2c=180c=(180-88)/2=92/2=46                                                                                therefore,a=88, b=22, c=46

Answer 2

4b+b+70=180
5b=180-70
5b=110
b=22

70+b+a=180 
70+22+a=180
92+a=180
a=180-92
a=88

2c+a=180
2c+88=180
2c=92
c=46