Determine what shape is formed for the given coordinates for abcd, and then find the perimeter and area as an exact value and rounded to the nearest tenth. a (−10, 5), b (−7, 1), c (1, 7), d (−6, 8)

Perimeter = 27 units

Area = 37.5 sq. units

Step-by-step explanation:

We have to find the length of all the sides to determine what kind of quadrilateral this is.

Length of AB =

Length of BC =

Length of CD = = 5

Length of DA == 5

The shape is a quadrilateral.

To find the perimeter sum the length of all the sides,

PERIMETER = 5+10+5+5 =27 units

We can find area by finding areas of triangles separately.

Area of ΔABC = 25 sq. units

Area of ΔACD = 12.5 sq. units

Area of quadrilateral= 25 + 12.5 = 37.5 sq. units

answer: 0

step-by-step explanation: the positive, like 5, + its opposite, like -5 would be 0

5+(-5)=0, or 5-5=0