Sunday

September 21, 2014

September 21, 2014

Posted by **raffin** on Monday, May 21, 2012 at 2:36am.

2 the floor of a room is in the form of a rectangle 'x'cm long and 'y'cm broad but with one corner rounded off by a quadrant of a circle of radius 'r' ,'r' bieng less than both x and y show that the area of the floor is given by A=xy-(1-22/7/4)r^2

- maths -
**Danny**, Monday, May 21, 2012 at 3:19am1.) 7:15

- maths -
**Reiny**, Monday, May 21, 2012 at 8:58amDanny's answer is not correct, (just look at the angle at 7:15)

After 7:00 ....

When the minute hand has moved x°, the hour hand is at 210 + x/60

210 + x/60 - x = 90

12600 + x - 60x = 5400

-59x = -7200

x = 122.0338° or 20.34 minutes, 20 minutes + appr 20 seconds

so the time is 7:20:20

**Answer this Question**

**Related Questions**

math - At what time between 6 o’clock and 7 o’clock will the hands on a clock be...

math - At what times between 6 o’clock and 7 o’clock will the hands on a clock ...

Algebra - At a certain time, Janice notices that her digital watch reads (a) ...

legal aid - with regard to statute of limitation the term "tolling" means A....

Physics - A 107 kg clock initially at rest on a horizontal floor requires a 673 ...

math - On Friday morning two clocks are correctly set at 6 a.m. One clock gains ...

physics - Suppose the time taken for light to bounce to and fro between the ...

MAths - Consider a digital clock. The first time after midnight when the three ...

math Puzzler.. - Hello, This is just a question that has stumped me for some ...

algebra 2 - A clock loses 10 minutes each day. How many days will it take to ...