Question

Abc is a triangle whose ab ac 20cm and angle bac 30 degree what is the area of the triangle

Answer 1

Can u please ask this question again.

I can't understand it.

Answer 2

Answer: 200 square unit

Step-by-step explanation:

Since, by the SAS area formula,

Area of a triangle = 1/2 × b × c × sin A

Where b and c are adjacent side and angle A is the included angle of these sides,

Here, in triangle ABC,

AB = AC = 20 cm,

m∠ BAC = 30°

Where AB and AC are adjacent sides and angle BAC is the included angle,

Thus the area of the triangle ABC = 1/2 × 20 × 20 × sin 30°

= 1/2 × 400 × 1/2

= 400/4

= 100 square cm