Question

Name the following angles as shown in the figure.
(i) ∠1 =
(ii) ∠2 =
(iii) ∠3 =
(iv) ∠1 + ∠2 =
(v) ∠2 + ∠3 =
(vi) ∠1 + ∠2 + ∠3 =

Answer 1

1. DBC
2. DBE
3. ABE
4. DBC + DBE
5. DBE + ABE

Answer 2

From the figure ,

i ) <1 = <CBD

ii) <2 = <DBE

iii ) <3 = <EBA

iv ) <1 + <2

= <CBD + <DBE

= <CBE

v ) <2 + <3

= <DBE + <EBA

= <DBA

vi ) <1 + <2 + <3

= <CBD + <DBE + <EBA

= <CBA

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