Question

state the order of the surds give as
$4 \sqrt{10}$
​

Answer 1

Answer:

The order of a surd indicates the index of root to be extracted. In n√a, n is called the order of the surd and a is called the radicand. For example: The order of the surd 5√z is 5. (i) A surd with index of root 2 is called a second order surd or quadratic surd.

Answer 2

Answer:

Consider, h1 = 13 m, h2 = 8 m and AC = 24 m

Area of quadrilateral ABCD = Area of triangle ABC+Area of triangle ADC

= ½( bh1)+ ½(bh2)

= ½ ×b(h1+h2)= (½)×24×(13+8)

= (½)×24×21 = 252

Hence, required area of the field is 252 m2