Question

solve this question 8 ,9

Answer 1

Answer: 8) 160 m²

9) 6 cm

Step-by-step explanation:

8) 2(l + b) = 40 m

    l + b = 20 m

CSA of room : 2lh + 2hb

2h ( l + b)

8 x 20 = 160 m²

9) Area of equilateral triangle = √3a²/4

√3a²/4 = 9√3

a² = 9 x 4 = 36

a = √36 = 6 cm

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