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I need help.....Can anyone help?

I need help.....Can anyone help?-example-1
User Calingasan
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1 Answer

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23 votes

Answer:

Area triangle MNO=12.5 square units.

Perimeter of rectangle JLMO = 30 units.

Area of triangle JKL = 6 square units.

Area of rectangle OJLM = 50 square units.

Area of JKLMNO = 68.5 square units

Explanation:

J = (1,6)

O = (-5,-2)

M = (-1, -5)

N = (-8, -6)

d = sqrt [(x-x)^2 + (y-y)^2]

OM = sqrt[(-1 - 5)^2 + (-5 - - 2)^2

OM = sqrt [(4)^2 + (-3)^2]

OM = sqrt 25 = 5 units

ON = sqrt [(-8 - - 5)^2 + (-6 - - 2)^2]

ON = sqrt 3^2 + -4^2

ON = sqrt 25 = 5 units

OJ = sqrt[(1 - - 5)^2 + (6 - - 2)^2

= sqrt (36 + 64) = sqrt 100 = 10 units

Area of triangle MNO = (5*5)/2 = 12.5 square units

Perimeter of rectangle JLMO = 2(10)+2(5)=30 units

Area of triangle JKL = (4*3)/2 = 6 square units

Area of rectangle OJLM =

(10)*(5)=50 square units

Area of JKLMNO = 6 + 12.5 + 50 = 68.5 square units

User ToMakPo
by
3.0k points