please answer both........ it's urgent
Answers
Answer:
answer for the given problem is given
Answer:
(8) x:y :: 5:6
y = 54
6a = 54
a = 54/6 = 9
∴ x = 5a = 5x9 = 45
(9) 2/17 , 4/17 , 5/17 , 6/17,
LCM of 4, 17 = 68 (17x4)
1/4 = 17/68
2/17 = 8/68
4/17 = 16/68
5/17 = 20/68
6/17 = 24/68
∴4/17 is the closest to 1/4
(10)
1. A septagon or heptagon has 7 sides.
2. formula to find the sum of interior angles = (n-2) x 180
where n = number of sides in the figure.
∴ sum of all interior angles of septagon = (7-2) x 180
= 5x 180
=900.
∴each interior angle measures 900/7 = 128.5° approx.
since the interior and exterior angle form a linear pair,
external angle = 180 - interior angle
external angle = 51.5°
3. sum of all interior angles = 900° (as we found in above question)
4. I'm not sure what n means here but n usually refers to number of sides......... so here,
n=7
Hope it helps u :)