+0

maths plzzzzz help i am really stuck

0
98
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https://vle.mathswatch.co.uk/images/questions/question18404.png

Mar 24, 2020

5+0 Answers

#1
0

CPHILL plz help

Mar 24, 2020
#2
+1970
+1

Sorry I'm not CPhill... but here.

Since we know supplementary angles and vertical angles, we can solve this easily.

Angle BCD=20 degrees

Angle CDA=115 degrees.

That means Angle CBA is also 115 degrees, which makes this shape a kite.

Hope this helped!

Mar 24, 2020
#3
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thank you so much

Guest Mar 24, 2020
#4
+1970
+1

Anytime :D

CalTheGreat  Mar 24, 2020
#5
+111330
+1

Here's away to prove  this

Connect BD

Since  AB  =AD.....then in triangle DAB angles ADB  and ABD  are  equal =  [180 - 110]/2  =

70/2 =  35°

So angle CDB  =180  -65 - 35 =  80°

And  angle BCD  = 20°

So...in triangle CDB  angle CBD  =   180  - 80 - 20  = 180 - 100  = 80°

But....in triangle  CDB,angles  CBD  are equal

So....this means that  CB = CD

But  since  CB = CD   and AB = AD....then ABCD is a kite  because it has two pairs of equal adjacent sides

Mar 24, 2020