How to solve this | Mathematics | Page 1

thorny tendon May 18, 2023, 5:26 PM

#

Cant find the answer no matter how hard i think

scenic citrus May 18, 2023, 5:28 PM

#

Easy

#

AB||CD - GIVEN???

#

@thorny tendon

#

@thorny tendon

#

Listen we have to show BC bisect <ACD

#

it means we have to show <ACB=<BCD

#

But <DMB = 130
SO, <BCD = 130/2

#

So, <BCD = 65°

#

<BCD=<ABC -alternative interior angle AB||CD

#

And <ACB=<ABC - 🔺ABC is isoscele triangle

#

Because AC = AB - tanget draw from same exterior point

#

So, <ACB = 65°

#

<ACB=<BCD
,Hence pove

CB is a bisector

#

Second m<A

#

In isoscele triangle ABC
B = C = 65°

Therefore,

A+65+65=180

A= 180-130
= 50°

thorny tendon May 18, 2023, 6:08 PM

#

Thanks man appreciate it

#How to solve this