Question

In an isosceles triangle 2ABC with AB = AC=13 cm D is mid point on BC Also BC=10 cm
Which of the following is true?
(a) Area of Triangle ABD and ADC are equal
(b) Area of triangle ABD is 30 cm2
(C) Area of triangle ABC is 60 cm2
(d) All the above
O (a)
O (b)
O (c)
O (d)​

Answer 1

Answer:

(a) Area of triangle ABD and ADC are equal

Step-by-step explanation:

• AB = AC (given)
• BD = DC ( D is midpoint of BC)
• AD = AD ( common side)

    ∴ Δ ABD ≅ Δ ADC

    hence their areas will also be the same as they are congruent.