Question

the base of the right angled traingle is 12cm and its hypotenuse is 13cm long.find its area and the perimeter.

Answer 1

1/2base*height

1/2*12*13

30

Perimeter is also 30

Answer 2

Answer:

Step-by-step explanation:

base=12cm

hypo=13cm

by pythagoras theorem

hypotenuse^2=base^2 + height^2

13x13=12x12x+^2

169-144=h^2

25=h^2

h=5cm

area of triangle=1/2 x base x height

=1/2 x base x height

=1/2 x12x5

=6x5

area of triangle=30cm^2

perimeter=sum of all sides

p=13+12+5

perimeter of triangle=30cm