Question

The perpendicular sides of the right triangle are 9 cm and 12cm.find the perimeter of the triangle.find the area of the triangle.find the in circle of the triangle

chapter: tangents​

Answer 1

Answer:

54 is the area

is the correct answer of your question please follow me

Answer 2

Answer:

as it's a right angled triangle so applying,

p^2+b^2= h^2

here p= 12cm, b=9cm, h=?

so, 12^2+9^2= h^2

=>h^2= 144+81= 225

=>h= root over of 225= 15 cn

as the three sides of a triangle are now known so the perimeter of the triangle= 12cm+ 9cm+ 15cm

=36cm

the area of the triangle= (1/2)×p×b

=(1/2)×12×9

=6×9= 54cm^2

perimeter= 36cm

area= 54cm^2