Question

pls tell the ans were pls pls pls pla​

Answer 1

Q.5) 10

given, interior angle = 144

hence, exterior angle = 180-144 = 36 (linear angles)

we know, sum of exterior angles = 360 degree

there fore, number of sides = 360/36 = 10

so the polygon has 10 sides and it is a regular decagon.

Q.6) 8

given, 80% of 40 students participated in the event.

80% of 40 = 40 x 80/100 = 32

i.e, 32 students participated.

therefore, number of students who didnot participate = total - no of students participated

= 40 - 32 = 8

so 8 students didnot participate in the sports event.

Q.9) 30%

money Amit spent on the T.V = 2500 + 500 = Rs.3000

money he sold the T.V for = Rs.3300

profit = 3300 - 3000 = Rs.300

profit% = 300/3000 x 100% = 30%