Question

(b) If the altitude of an equilateral triangle is 12v3 cm, find its perimeter and area.
$12 \sqrt{3}$
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Answer 1

Answer:

STEP BY STEP EXPLANATION:

Altitude of an equilateral∆ = 12cm

√3/2*side = height

Let the side be X

√3/2*X = 12

√3X = 12*2

X = √24/3

X = √8

SIDE = √8

PERIMETER = 3*√8

AREA = √3/4*SIDE^2

= √3/4*√8^2

= √3/4*8

= √3*2

= 2√3

HERE IS YOUR ANSWER

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