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Mathematics

2 answers:

Drupady [299]3 years ago

7 0

Answer:

Measure of angle R: Measure of angle S:

42 degrees 90 - 42 = 48

30 degrees 90 - 60 = 30

84 degrees 90 - 84 = 6

Complimentary angles are angles whose sum is 90 degrees

Lelu [443]3 years ago

7 0

It’s 6483837364939292837446382929

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Find the area of the shaded region. Round to the nearest hundredth when necessary.

dusya [7]

Answer: 423.11 m^2

Step by step explanation:

Area of a circle formula pi*r^2

First solve the area of the big circle

3.14*21^2=1384.74 m^2

Now find the are of the smaller circle

r=21-3.5=17.5
3.14*(17.5)^2=961.63 m^2

Now we can minus the small area off the big area to get the shaded area.

1384.74-961.63=423.11 m^2

So the area of the shaded region is 423.11 m^2

3 0

3 years ago

Need help to solve please?? Need to proof

inysia [295]

Answer:

Step-by-step explanation:

# Statement Reasoning

1). KJ║ML Given

2). ∠KLM ≅ ∠LKJ Alternate interior angles

3). KL ≅ LK Reflexive property

4). ΔKJL ≅ ΔLMK SAS congruence postulate