Answer:
I think your question means to find out the triangle's perimeter.
perimeter = (4+4√2)cm
Step-by-step explanation:
Hypotenuse side,H = 4cm
Opposite side,O = ?
Adjacent side,A = ?
Since the triangle is 45°-45°-90° triangle,
sin 45° = A/4
1/√2 = A/4
4/√2 =A
2√2 =A
A = 2√2cm
45°=45°
so O = A(because the triangle is isosceles.)
O = 2√2cm
The perimeter of triangle is 4+2√2+2√2=(4+4√2)cm.
