Question

the sides of a triangle are 8 cm, 15 cm and 17 cm. Find its perimeter and its area. Also find the length of the altitude drawn on the side with length 17 cm.


Answer fast​

Answer 1

Answer:

Step-by-step explanation:

Perimeter of triangle is 40 (cm). Area of triangle is 60. Altitude on side 17 cm is 7.059 (cm).

Step-by-step explanation:

1. Side of triangle is 8 cm, 15 cm and 17 cm.

So  

Perimeter of triangle = Sum of side of triangle

Perimeter of triangle= 8+15+ 17=40 (cm)

2. If we see side of triangle

Means it satisfied Pythagoras rule

It must be a right angle triangle, and right angle opposite to side longest side 17 (cm).

3. Base =15 cm

  Perpendicular= 8 cm

  Hypotenuse =17 cm

4. So area of triangle  

5.

Area of triangle

 We can also write

  Area of triangle

 

 On solving

 Altitude =7.059 (cm)

Answer 2

Answer:

perimeter =40cm

area=60

Step-by-step explanation:

area=

$\sqrt{20(20 - 8)(20 - 15)(2 - 17)}$

=60cm

perimeter=total of 3 sides

=40cm