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4 years ago

What is the complimentary angle of 72 degrees

Mathematics

2 answers:

Stella [2.4K]4 years ago

7 0

Answer:

Step-by-step explanation:

If sum of two angles add up to 90°, then two angles are called complementary angles

Let the unknown angle be x

x + 72° = 90°

x = 90° - 72°

x = 18°

Irina18 [472]4 years ago

4 0

Answer: 18°

Step-by-step explanation:

Complementary angles are any two angles whose sum is 90 degrees. Hence, if angles x and y are complimentary, we can say

x + y = 90°

Therefore, the complimentary angle of 72° is obtained by subtracting 72° from 90°

i.e 90° - 72° = 18°

Thus, the complimentary angle of 72° is 18°

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Answer:

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Step-by-step explanation:

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3 years ago

The width of a rectangle is the length minus 2 units. the area of the rectangle is 35 units

Mariana [72]

Answer:

$Length=7units\\\\Width=5units$

Step-by-step explanation:

Width=(Length-2) units

W=(L-2) units

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$35= L*(L-2)\\\\35=L^2-2L$

Subtracting 35 both sides:

$L^2-2L-35=0$

Solving the quadratic equation for 'L' ;

Using factorization:

$L^2+5L-7L-35=0$

Taking common from the equation :

$L(L+5)-7(L+5)=0\\\\(L+5)(L-7)=0\\\\L+5=0\\\\L=-5$

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3 years ago

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Answer:

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3 years ago

Read 2 more answers

Point R is located on segment QS. If QR = 10 and RS = 7, what is the measure of QS?

Vadim26 [7]

Answer:

QS = 17 units

Step-by-step explanation:

Given:

R located at QS

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RS = 7

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Measure of QS

Computation:

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3 years ago

The ratio of coloured papers to wight papers is 3:8.If there are 48 wight papers, how many coloured papers are there?

mestny [16]

Answer: The total number of colored papers is 18.

Step-by-step explanation:

Given: The ratio of coloured papers to wight papers is 3:8.

Let total number of colored papers = 3x

and total number of wight papers = 8x

Since, there are 48 wight papers , then

$8x=48$

$\Rightarrow\ x=6$

Now , number of colored papers = 3(6)=18

Hence, the total number of colored papers is 18.

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3 years ago