Answer:
a)9:7 b) 9:16 c) 7:16
Step-by-step explanation:
the no of girls (320-180)=140
a) ratio of no of boys and girls=180/140=9/7=9:7
b)ratio of boys and total pupil=180/320=9/16=9:16
c) ratio of the girls and pupils=140/320=7/16=7:16
Step-by-step explanation:
∠4 = ∠1 & ∠2 = ∠3
360 - 2(98) = ∠2 + ∠3
∠3 = 164/2
∠3 = 82°
Answer:
31.42cm
Step-by-step explanation:
Answer:
The correct option is (c).
Step-by-step explanation:
The given expression is :

We need to use the associative property to make it easier.
The associative property for multiplication is as follows :

We have,


Hence, the correct option is (c).