Answer:
The value of x is 10cm
Explanation:
The triangle given is a right angled triangle.
so two angles of the triangle is known,
let it be a=45
b= 90
and c=45, since its a right angled triangle.
to find out the sides of the triangle, we use the formula
tan45= opposite side/ adjacent side= 10/x; value of tan 90 is 1
so, 1= 10/x
x= 10cm
This is basically using SOH CAH TOA method, that is, sine theeta cosine theeta and tangent theeta.