Question

1. Find the area and the height of an equilateral triangle whose each side measures :
(i) 12 cm

Answer 1

Step-by-step explanation:

Triangle ABC is equilateral triangle

so each angle is of 60 degree

AD is height of triangle ABC

soAD=root3/2×12......(30-60-90 triangle)

=6 root3 cm

area of triangle =1/2×6√3×12

=6√3×6

=36√3

=36×1.73

=62.28cm^2

Answer 2

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