Question

1. what is 0.45 as a fraction? simplify your answer. 9) find the perimeter of the triangle.

Explanation:

Step1: Convert decimal to fraction

$0.45=\frac{45}{100}$

Step2: Simplify the fraction

$\frac{45\div5}{100\div5}=\frac{9}{20}$

Step3: Calculate triangle perimeter

The perimeter $P$ of a triangle with side - lengths $a = 7$cm, $b = 8$cm and $c = 16$cm is $P=a + b + c$.
$P=7 + 8+16=31$cm

Answer:

1. $\frac{9}{20}$
2. $31$cm