Question

Area of a isocles triangle whose both sides are 5 cm and one side 4cm​

Answer 1

9.17cm (3s.f.)

Explanation:

Using Pythagoras Theorem,

5² = 2² + (Height of Triangle)²

Height of Triangle = 4.5826cm (5s.f.)

Area = ½ × 4 × 4.5826

= 9.1652cm (5s.f.)

= 9.17cm (3s.f.)