A) 750 |
B) 150 |
C) 300 |
D) 600 |
A) 750 |
Since,\( \Large AC^{2}=AB^{2}+BC^{2} \)
=> \( \Large (25)^{2}=(15)^{2}+(20)^{2} \)
=> 625=225+400
=> 625 = 625
So, the triangular field is right angled at B
Area of the field = \( \Large \frac{1}{2}\times AB\times BC \)
= \( \Large \frac{1}{2}\times 15\times 20 \)
=\( \Large 150m^{2} \)
So, the cost of sowing seed is RS. 5 per sq m
Cost of sowing seed for
\( \Large 150m^{2}=150\times 5 \)
= RS. 750