2ABC is an isosceles triangle with AB =AC and BD and CE are its two medians.Show that BD = CE.ORThe angles of quadrilateral are in theratio 3:5:9:13. Find all the angles ofthe quadrilateral. About the author Josie
Answer: or one a=3x b=5x c=9x d=13x sum of all angle of quadrilateral = 360 3x. + 5x. + 9x. + 13x. = 360 30x. = 360 x. = 360÷30 x. = 12 a) 3x = 3 × 12 =36 b)5x. = 5 ×12. = 60 c) 9x = 9 × 12 = 108 d) 13x = 13 × 12 = 156 a+b+c+d= 360 36+60+108+156 =360 Reply
Answer:
or one
a=3x
b=5x
c=9x
d=13x
sum of all angle of quadrilateral = 360
3x. + 5x. + 9x. + 13x. = 360
30x. = 360
x. = 360÷30
x. = 12
a) 3x = 3 × 12 =36
b)5x. = 5 ×12. = 60
c) 9x = 9 × 12 = 108
d) 13x = 13 × 12 = 156
a+b+c+d= 360
36+60+108+156 =360