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How do you find area of a triangle given its 3 sides in c program?
#include<stdio.h> #include<math.h> main() { float A,a,b,c,s; printf("entr the value of a,b and c"); scanf("%f %f %f",&a,&b,&c); A=sqrt(s*s-a*s-b*s-c) printf("area of the triangle %f\n"A); getch(); }
When you reverse the digits of age of father you will get the age of son one year ago the age of father was twice that of son's age what are the current ages of father and son?
f = 10a + b so s = a + 10b; f - 1 = 2(s - 1) so f = 2s - 2 + 1 ie 2s - 1 ie 10a + b = 2a + 20b - 1 8a = 19b - 1, making a = 7 and b = 3. So Father is 73 and son is 37. (Last year f = 72, s = 36)
If B plus P plus F equals 24 what are the values of Q and T A plus B equals Z Z plus P equals T T plus A equals F F plus S equals Q Q-T equals 7?
31
How much does a 7 kg bowling ball weigh in newtons?
F=ma F=7kg*9.81m/s**2 F=68.67N
Three years earlier father was 7 times as old as his son.three years hence the father age would be four times that of his son. what are the present age of father and son?
f - 3 = 7(s -3) ie f - 3 = 7s - 21 so f = 7s - 18;f + 3 = 4(s + 3) ie f + 3 = 4s + 12 so f = 4s + 9.ie 7s - 18 = 4s + 9 so 3s = 27, making s = 9Now f = 45, s = 9; In 3 years f = 48, s = 12 and 3 years ago f = 42, s = 6.
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