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2 years ago

What is the area of the rhombus

Mathematics

2 answers:

jeka942 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.

fomenos2 years ago

3 0

Answer:

A=pq

Step-by-step explanation:

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Answer:

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Step-by-step explanation by elimination:

Solve the following system:

{8 y - 5 x = -27 | (equation 1)

7 y - 8 x = -20 | (equation 2)

Swap equation 1 with equation 2:

{-(8 x) + 7 y = -20 | (equation 1)

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Subtract 5/8 × (equation 1) from equation 2:

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0 x+(29 y)/8 = (-29)/2 | (equation 2)

Multiply equation 2 by 8/29:

{-(8 x) + 7 y = -20 | (equation 1)

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Subtract 7 × (equation 2) from equation 1:

{-(8 x)+0 y = 8 | (equation 1)

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Divide equation 1 by -8:

{x+0 y = -1 | (equation 1)

0 x+y = -4 | (equation 2)

Collect results:

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3 years ago

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kirill [66]

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Nana76 [90]

Applying the inscribed angle theorem, the measure of arc AB that doesn't go through point C is: 100 degrees.

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Answer:

Step-by-step explanation:

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1 year ago