Question

Side of an equilateral triangle is 3/5 cm. Find its perimeter.
1 point
18/5 cm
12/5 cm
9/5 cm
8/5 cm

Answer 1

Answer:

Area of triangle =

2

1

base×height

Area of equilateral triangle =

4

3

s

2

Hence,

2

1

×s×height=

4

3

s

2

height=

2

3

s

height=

2

3

5

3

∴height=7.5 cm

Step-by-step explanation:

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