Question

figut?
R
40°
3x
P
S.
(C) Two supplementary angles are in the ratio 2:3. Find the angles.
SHORT ANSWER QUESTIONS
8. @) In the given figure, ZAOC and ZBOC form a linear pair. If a - b = 30°, find a za
(C.B.S.E.
(b) In the given figure, ZAOC and ZBOC form a linear pair. If a - 2b = 30°, find as
str
b
A
B
A
O
B
9. Find the value of ZBOC, ZCOD and ZDOA, where AOB is a straight line.
D
$|231 + 2005222.12 \times \frac{?}{?} |$
​

Answer 1

Explanation:

Let the two angles be 2x and 3x in degrees. Then,

2x + 3x = 180

∘

5x = 180

∘

x = 36

∘

Thus, the two angles are 2x = 2 × 36

∘

= 72

∘

and 3x = 3 × 36

∘

= 108