How to find the area of quadrlateral when all its sides and sum of two interior angles are given

draw a diagnal make it two triangles and find the area for those triangles, can you provide the questio please?

find the no between 200 and 300 { both included }} which are not divisible by 2,3,4,5

Total numbers between 200 and 300 =101 Numbers divisible by 2,3,4,5 i.e Lcm =60 So numbers divisible by 60 in the range of 200 to 300 is 240 and 300 so other 99 nunbers are not divisible. Hence 99 is the answer.

Remainder when (2347)^77 is divided by 8. Can this be done by Fermat's Theorem? if yes could please tell the answer

yes it could be done....the remainder is 3 2347 and 8 are co prime...hence totient of 8 is 4. divinding 77 by 4 remainder is 1. hence dividing 2347^1 by 8 we get remainder as 3