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algol [13]
3 years ago
7

Two of the angles in a triangle measure 41° and 61° What is the measure of the third angle?

Mathematics
1 answer:
professor190 [17]3 years ago
5 0

Answer:

78 degrees

Step-by-step explanation:

All inner angles of a triangle make a sum of 180 degrees. Given 41 and 61 add up to 102, that leaves 78 degrees left to make 180

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A rectangular plot measures 20 ft. By 30ft. A 3ft wide side walk surrounds it. Find the area of the side walk
r-ruslan [8.4K]

Answer:

336 feet²

Step-by-step explanation:

If we have a rectangle that is 30 by 20 feet, that means the area of that rectangle would be 20 × 30 feet squared, which is 600 ft².

If there is a 3 feet sidewalk surrounding it, that means that the end of the sidewalk will extend 3 feet extra around each side of plot. Since there are two ends to one side, that means an extra six feet is added on to each dimension. Therefore, 36 × 26 are the dimensions of the sidewalk+plot. 36 × 26 = 936 ft².

To find the area of the sidewalk itself, we subtract 600 ft² from 936 ft². This gets us with 336 ft².

Hope this helped!

3 0
2 years ago
What is the area of a circle of 11 using pie
ehidna [41]

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Step-by-step explanation:

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7 0
2 years ago
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The answer to your question is 4 quarts
3 0
3 years ago
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Solve. 54 ÷ (4 – 1)3
pshichka [43]
54 divide 3*3=54 is the answer
3 0
3 years ago
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Dmitry [639]

Answer:

54.6

Step-by-step explanation:

42 =  70%

100% - 70% = .30%

42 x 1.3 = 54.6

 

5 0
3 years ago
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