The triangle with one angle equal to 90 degree is called right angled triangle.
Note: In right angled triangle, sum of two acute angles is equal to 90 degree.
The famous pythagoras theorem is also valid for right angled triangle.
Hope this helped you to some extent.
Your question can be written as:
72/5 - 15/2
= [ 72 × 2] / [ 5 × 2] - [ 15 × 5] / [ 2 × 5] [ LCM of 2 & 5 is 10 =2 × 5]
= [144 - 75] / 10
= 69/10
= 6 9/10 or 6.9
Hope this helped you to some extent.
By convention,
1m = 1000 mm
Tips- So the conversion factor is 1000.
To convert, meter into millimeters, multiply it by 1000
& to convert millimeters into meter, divide it by 1000.
Hope this helped you to some extent.
2(3x-5)+5
=6x - 10 +5
= 6x -5
6x -10+5
= 6x -5
6x = 15
i.e. x = 15/6
i.e. x = 5/2
So, x = 2.5
Hope this helped you to some extent.
By convention,
1000 ml = 1m
So, 1 ml = 1/1000 m
Hence, 1380 ml = 1380/1000 = 1.38 m
Hope this helped you to some extent.
L.C.M of 4 & 14 is 28
Explanation: 4 = 2 × 2
14 = 2 × 7
So, Least Common Multiple (LCM) = Common Factor × Remaining factor
= 2 × (7 × 2)
= 28
Hope this helped you to some extent.
By convention,
1 mile = 1.6 km [Approximate Value]
So, 3 miles = 3 × 1.6 = 4.8 km
Hope this helped you to some extent.
By convention,
1 liter = 1000 ml
So, 1 liter = 4 × 250 ml
i.e. there are 4 times the 250 ml in a liter.
Hope this helped you to some extent.