Question

The the hypotenuse of right triangle is is one halfmetre and another side is halfmetre calculate its perimeter correct to a centimetre

Answer 1

Answer:

• if the angles of the triangle is, 45°, 45°, and 90°.

1 and a half metres =150 cm (hypotenuse)

half metre = 50 cm

if the sides of right triangle is, 50cm, 50cm, and 150cm.

perimeter of this triangle is,

Therefore, perimeter = 150+50+50

= 250cm

• if the angles of the triangle is, 30°, 60°, 90°.

1 and a half metres = 150cm (hypotenuse)

half metre = 50cm

length of the third side,

let it be x.

x^2+ 50^2 = 150^2

50^2= 2500

150^2=22500

x^2=22500-2500=20000

x=square root of 20000 = 141.4

Therefore, perimeter = 150+50+141.4

= 341.4cm