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MaRussiya [10]
3 years ago
5

What is the area of the rhombus

Mathematics
2 answers:
jeka943 years ago
6 0

Answer:

the total area of the rhombus is 80 units².

Step-by-step explanation:

If we draw a horiz. line through the vertices (-1, 1) and (9, 1), we create a triangle with those points and (4, 9) as vertices.  Thus, the base of this triangle is 9 - (-1), or 10, and the height is 9 - 1, or 8.

The area of this triangle is A = (1/2)(base)(height), or

A = (1/2)(10)(8) = 40 units².  Since the lower triangle has the same area, the total area of the rhombus is 2(40 units²), or 80 units².

fomenos3 years ago
3 0

Answer:

A=pq

2

Step-by-step explanation:

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