Question

please solve this and explanations​ class 9 CBSE

Answer 1

Answer:

Area of Triangle with sides

240 m, 200 m and 360 m  for Wheat

s = (240 + 200 + 360)/2 = 400

Area using hero Formula

= √400 (400-240)(400-200)(400-360)

= √400 * 160 * 200 * 40

= 16000√2 m²

= 1.6√2 hectare

= 2.26 Hectare

Area of Triangle with sides

240 m, 320 m and 400 m  for onion & Potato

s = (240 + 320 + 400)/2 = 480

Area = √480 * 240 * 160 * 80

= 38400 m²

= 3.84 Hectare

Divide the field into two parts by joining the mid point of the longest side to the opposite vertex i.e Median

Median divides the triangle into two equal area

= 3.84/2

= 1.92 Hectare

Potatoes = 1.92 Hectare

Onion = 1.92 Hectare

Wheat = 2.26 Hectare