Question

An equilateral triangle has sides of length 25 cm .if the side is increased by 30% then find the length of the triangle

Answer 1

Step-by-step explanation:

side=25cm

percentage increased=30%

=25× 30/100

=7.5

=25+7.5cm

=32.5cm

Answer 2

Perimeter of equilateral triangle

100+100+100

Perimeter of New triangle

=120+150+130=140

% increase =

$\frac{100}{300} \times 100$

=

$33 \times \frac{1}{3} \%$

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