72 minutes
We require their hourly rate of work
Maria cleans the house in 1 hour
Sasha cleans of the house in 1 hour
let x be the time it takes both to clean the house
+
=
multiply through by 6x
3x + 2x = 6
5x = 6 ⇒ x =
Together they can clean the house in 72 minutes
Answer: In degrees , The measure of
In radians , the measure of .
Step-by-step explanation:
We know that the formula for length of arc is given by :-
, where = Central angle subtended by arc.
r= radius of the circle.
As per given , we have
Radius of circle : r=7 m
Length of arc : l= 8 m
Substitute these values in the above formula , we get
Hence, the measure of .
To convert it into degrees we multiply it with
The measure of
Hence, the measure of