Question

perimetre of ABC is 132 cm. if AB=33 cm,AC=44CM and height corresponding to BC is 26.4 xm, find BC and the area of the triangle ABC.​

Answer 1

'Perimeter' means sum of all lengths of all sides of a shape.

AB = 33 cm

AC = 44 cm

Thus BC = 132 - AB - AC = 132 - 77 = 55 cm.

BC is 55 cm.

Height corresponding to BC is 26.4 cm.

Area of Triangle : 1/2 * ( Base ) * ( Height )

ΔABC = $0.5\times55\times26.4=726$ cm²