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Answer:
G) False
H)b)2
I)a)18:7
Step-by-step explanation:
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Verified answer
Step-by-step explanation:
1) Equilateral triangle is an acute angles triangle because each angle is 60° are an acute angles
True
2)base of the triangle =(b)=20cm
area of the triangle=20cm²
=>bh/2=20
=>20×h/2=20
=>10×h=20
=>h=20/10
=>h=2 cm
height=2 cm
option b
3)Let the side of the square=a units
Area of the square=a² sq.units
If the side is increased by 50%
=>a+50%×a
=>a+(50/100)a
=>a+a/2
=>3a/2
new side =3a/2 units
area of the new square =(3a/2)(3a/2)
=9a²/4 sq.units
Their ratio=9a²4:a²
=>9:4
Option b