Question

1. Find the area and height of an equilateral triangle of side 18 cm. (√3 = 1.73).

2. Find the area and height of an equilateral triangle of side 8 cm. (√3 = 1.73).
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Answer 1

Step-by-step explanation:

Area of equilateral triangle=root3/2 × side^2

=1.73×162

=280.26 sq cm.

Area of triangle=1/2×18×h

280.26=9×h

h=280.26/9=31.14 cm.