Question

Area of the given triangle

Answer 1

Answer:

by pythagrus

BC=5 cm

area=1*12*5/2

30cm^2

Answer 2

FORMULA USED

PYTHAGORAS THEOREM

Pythagoras theorem is used for all right angled triangle. As ABC is a right angled triangle. So the mathematical equation of Pythagoras theorem we have to use here is b =√(h)^2-(p)^2. Here b stands for base of the triangle, h for hypotenuse and p for perpendicular.

ANSWER

b=√(13)^2-(12)^2

b=√169-144

b=√25

b=5

Therefore, the base of the triangle is 5cm

Perimeter=13+12+5=30

semi perimeter=30/2=15

Area =√15(15-13)(15-12)(15-5)

=√15*2*3*5

=√450

=21.21 cm^2 (approx.)

Therefore, the area is 21.21cm^2.

HOPE THIS WILL HELP YOU.