Question

The perimeter of a rhombus is 20 cm. If one of its diagonals is 6 cm, then its area is

(a) 28 cm2 (b) 36 cm2 (c) 24 cm2 (d) 20 cm2​

Answer 1

Answer:

C)24cm^2

Step-by-step explanation:

Perimeter of rhombus = 20 cm

Each side of rhombus =20/4= 5cm

Diagonals bisect each other so we can divide rhombus into 4 triangle of equal area

Area of triangle 1/2 *b*h

Base = 3 cm

Perpendicular =underoot h^2-b^2

25-9 =16

Perpendicular underoot 16

P=4

Area of a triangle =6cm2

Area of rhombus or 4 triangle =24cm2

Answer 2

Answer:

24cm²

Step-by-step explanation:

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