Question

PLS HELP ME RIGHT NOE I NEED THIS

Answer 1

Answer:

≈ 36.5 cm²

Step-by-step explanation:

Given the perimeters in ratio a : b , then

ratio of areas = a² : b²

Here ratio of perimeter = 20 : 28 = 5 : 7 , thus

ratio of areas = 5² : 7² = 25 : 49

let x be the area of larger , then using proportion

$\frac{25}{18.6}$ = $\frac{49}{x}$ ( cross- multiply )

25x = 911.4 ( divide both sides by 25 )

x ≈ 36.5 cm² ( to the nearest tenth )