Question

Measure of one side of an equilateral triangle is 12 cm.Its area is given by
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Answer 1

Answer:

42 cm

Step-by-step explanation:

1/2 b h

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Answer 2

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here is ur answer....

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Brainly User

Side = a = 12 cm (given)

Area of the equilateral triangle

= √3/4 × a²

= √3/4 × (12)²

= √3/4 × 12 × 12

= √3 × 12 × 3

= 36√3 cm²

Circumference of circle = 88 cm

2πr = 88

2 × 22/7 × r = 88

44/7 × r = 88

r = 14 cm

Radius of circle = 14 cm

Area of the circle

= πr²

= 22/7 × 14 × 14

= 22 × 14 × 2

= 616 cm²

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