Question

The.equal.sides.of.the.isosceles.triangle.are.12.cm.and.the.perimeter is.30.cm.the.area.of.this.triangle.is

Answer 1

Side a = 12 cm

Side b = 12 cm ( two sides of an isoceles triangle are equal)

Side c = ?

Perimeter = 30 cm

Area = ?

Side a + Side b + Side c = Perimeter

12 + 12 + Side c = 30

24 + Side c = 30

Side c = 30 - 24

= 6cm

Area = 1/2 × b × h

= 1/2 × 6 × 12

= 72 cm

Therefore, area = 72 cm

Hope it helps :)