Answer:
Perimeter = 85.5cm, Area = 3163.5cm
Explanation:
To find the perimeter of a shape, you need to add all of the sides together.
In this case, you need to add 3 sides together.
38cm + 37cm + x.
To find x, you need to subtract 81.1 from 98.7 and divide by two. (98.7 - x - x = 81.1)
(98.7 - 81.1) / 2 = 8.8.
The perimeter is: 8.8cm + 38cm + 29cm = 85.5cm
To find the area of the trapezoid (shape on the right of the triangle), you need to use the formula, (length of top + length of bottom)/2 * height.
Length of the top base: 81.1cm
Length of bottom base: 98.7 - 8.8 = 89.9cm
Height = 37
(81.1 + 89.9) / 2 * 37 = 3163.5cm