Example 18 If each side of a triangle is doubled, then find the percentage increase in the
area of the triangle.
Share
Example 18 If each side of a triangle is doubled, then find the percentage increase in the
area of the triangle.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
Let's consider an equilateral triangle of side X cm
Area
= 1/2 *X * X
= 0.5 X^2
If the sides are doubled, I. E. 2X per side
Area
= 1/2 *2X * 2X
=2X^2
RATIO OF THE SMALL TRIANGLE TO THE BIG TRIANGLE WILL BE :-
0.5 X^2 : 2X^2
= 0.5 : 2
= 1/2 : 2
= 4:1
Percentage increase in area of the triangle is 300%
Answer: 60%
Step-by-step explanation:
ok i’m not smart but what I think is 3 sides * 2 each so 2 and then move the decimal 20% then multiply by three so 60%(this is probably wrong so sorry dude)