Question

Question 5
Length of the side of a rhombus is 13 cm and the sum of the lengths of diagonals is
31 cm. The area of the rhombus is:
A
96 cm
B
С C​

Answer 1

Answer:

Wehave

s=13 cm

d

1

=24 cm

d

2

=2

13

2

−12

2

=2

169−144

=2

25

=2×5

=10

areaofrhombus=

2

1

d

1

×d

2

=

2

1

×24×10

=12×10

=120 cm

2