Question

Find the area of a triangle whose two sides are 20 cm and 50 cm and semi perimeter is 45 cm
plz help ​

Answer 1

given=side 1 is equals to 20cm

side to equals to 50 CM

semi perimeter is equals to 45 CM

area of triangle-—

perimeter of triangle will be semi perimeter* 2

therefore perimeter of triangle will be 90 cm

90= S1+S2+S3

S3=20

AREA OF TRIANGLE= √S(s-a) (s-b) ( s-c)

√45 (45-50)( 45-20)(45-20)

√45*-5*25*25

3*3*5* -5*5*5*5*5

Making pairs

-125*9=√1125.

if you want you can solve this under root