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schepotkina [342]
3 years ago
13

Please hurry and help me!!!!

Mathematics
1 answer:
elena55 [62]3 years ago
3 0

Answer:

πr^2/2 or 3.14r^2/2

Step-by-step explanation:

Area of a circle= πr^2 or 3.14r^2

semi circle is half of a circle.

Area of a semicircle=1/2of area of a circle.

therefore, 1/2*πr^2 or 1/2* 3.14r^2

=πr^2/2 or 3.14r^2/2

r=d/2=10/2=5units

Area=1/2*π*5^2.

Area=1/2*25π =12.5π or 12.5(3.14)units ^2

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7 0
3 years ago
Brainly plz help only three questions and don't answer for point kinda rude
Ivan

Answer:

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7 0
3 years ago
If you had a right triangle with legs measuring 40 yards and 100 yards long,
tia_tia [17]

9514 1404 393

Answer:

  (c) 108 yd

Step-by-step explanation:

For hypotenuse c and legs a and b, the Pythagorean theorem tells you the relation is ...

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Solving for c, we have ...

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6 0
3 years ago
An athlete completes one round of a circular track of diameter 200 m in 40 s what will be the distance covered and displacement
Cloud [144]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
If the radius of Mars is about 13.7% of Neptunes radius what is the radius of Neptune
vampirchik [111]
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3 years ago
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