What is the missing length?

Solution:
Statement: This is a right angled triangle.
So, We have
• Side of triangle = 4 mm
Let another side be p as Question!
Area of Right angled Triangle = ½ × b×p
Area of Right angled Triangle = ½ × b×p Area of Right angled Triangle =½ × 4 × p
14 = 2 × P
14 = 2 × P = 14/2P = 7