Answer
The figure is known as a triangle. The perimeter is $5.8$ meters and the area is $1.575$ sq meters.
Work Step by Step
1. State the name of the figure:
Triangle, since there are 3 sides.
2. Find the perimeter
Let $P =$ the perimeter of the triangle
$P = 2.1 + 2 + 1.7$
$P = 5.8$ m
3. Find the area
Let $A =$ the area of the triangle
$A = (base \times height) \div 2$
$A = (2.1 \times 1.5) \div 2$
$A = 3.15 \div 2$
$A = 1.575$ m$^{2}$
