Question

if the base
of right angled triangle
is 3cm and the hypotenuse is 17.cm

Find perimeter.​

Answer 1

Answer:

Hope it helps!

Step-by-step explanation:

We are given,

Base= 3 cm

Hyp.= 17 cm

Length/Third Side= ?

Using pythagoras Theorm,

(Hyp.)²= Length² + Base²

(17)² = (Length)² + (3)²

289= Length² + 9

Length² = 289- 9

Length² = 280

Length= _/280

Length= 16.7 cm

Perimeter= Sum of all sides

= 17 cm+ 3 cm+ 16.7 cm

= 67. 1 cm

Answer

Answer 2

let unknown side be 'x'

=>17²=3²+x²

=>x²=289-9=280

=>x=(280)½ cm

perimeter of triangle is sum of all three sides

=>perimeter =17+3+2(70)½

=20+2(70)½

=20+2(8.35)

=20+16.72

=36.72

therefore,perimeter is 36.72 cm