3 years ago

Please help me on this

Mathematics

1 answer:

Molodets [167]3 years ago

7 0

Associative property

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graph 1

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Use Heron's Area Formula to find the area of the triangle. (Round your answer to two decimal places.) A = 79°, b = 77, c = 43

BlackZzzverrR [31]

Answer:

1549.5

Step-by-step explanation:

Hello There!

Heron's area formula is

$A=\frac{(a)(b)sin(c)}{2}$

all we have to do is plug in the values

$A=\frac{77*41sin79}{2} \\77*41=3157\\3157sin79=3098.997018\\\frac{3098.997018}{2} =1549.498509$

so the area of the triangle is 1549.498509

our final step is to round to the nearest hundredth

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Step-by-step explanation:

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15% of 140 is 21

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