Math, asked by MrSoyal, 19 days ago

∆ find the area of a square whose:↓
→ a) side=8cm b) diagonal =5.2 CM

∆find the expenditure of putting a barbed wire around a 4 hectare square field, 45 rupees meter.
{use 1 hectare =10,000 m²
~♥♥♥​

Answers

Answered by vedvatikatara
2

Answer:

Q1) a) 64m²

b) 13.52cm²

Q2) ₹ 36,000/-

Step-by-step explanation:

Q1) a) area of □ = s × s

= 8 × 8 cm²

= 64 cm²

b) area of □ = 1/2 × d²

= 1/2 × 5.2² cm²

= 13.52 cm²

Q2) area of □ = 4 hectare² (4×10,000 m²)

s² = 40,000m²

side = root 40,000 m²

side = 200 m

perimeter of □ = 4s

= 4 × 200

= 800 m

total expenditure = ₹ 45 × 800/-

= ₹ 36,000/- (ans)

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