Question

5 5
Exercise
A Write four equivalent fractions for each of the following.
⅜​

Answer 1

Two angles of a polygon are right angles and the remaining are 120° each.

0

votes

445 views

asked May 27, 2019 in Class VIII Maths by muskan15 (-3,44s and the remaining are 120° each. Find the number of sides in it.

understanding shapes (including polygons)

Please log in or register to answer this question.

1 Answer

0

votes

answered May 27, 2019 by navnit40 (-4,939 points)

Let number of sides =

∴ Sum of other angles = 180n – 360° – 180°

= 180n – 540

No. of vertices at which these angles are formed = n – 2

∴ Each interior angle = (180n – 540)/(n – 2)

∴ (180n – 540)/(n – 2) = 120°

180n – 540 = 120n - 240

180n – 120n = -240 + 540

60n = 300

n = 300/60

n = 5

Answer 2

Answer:

12/32

6/16

9/24

15/40

yahi 4 answer hoga