Question

calculate the angles marked with small letters in the following diagram.


Plzzz do with full explanation ,detail and process plzzzzZ​

Answer 1

The four parts of rectangle

The first AB is 21

So, AB + BC + CD + DC

21+21+21+21 = 84

Hope it helped

Thank you

Answer 2

Step-by-step explanation:

HEY! MATE

HERE IS YOUR ANSWER :

AS WE KNOW THAT,

DIAGONAL OF RECTANGLE BISECT WITH EACH OTHER.

SO,

OA = OB

SO <OAB = <BOA = 21

WE KNOW THAT,

<CBO = 90

<OBC = 90 - 21

<OBC = 69