Question

Please give the answers of the given Questions​

Answer 1

14)

length(l)= 8cm

width(w)= 6cm

length of diagonal of a rectangle =

$\sqrt{l {}^{2} + b { }^{2} }$

$\sqrt{8 ^{2} + 6^{2} }$

$\sqrt{64 + 36}$

$\sqrt{100}$

= 10 cm is the diagonal

15)

diagonal(d) =

$8 \sqrt{2}$

diagonal of a square =

$\sqrt{2 \times side ^{2} }$

$8 \sqrt{2} = \sqrt{2 \times side ^{2} }$

If we square both sides,

128= 2 × side × side

64= side^2

side=

$\sqrt{64}$

= 8cm

Side of square is 8cm

Area of a square is side× side

=8 × 8

=64 cm2