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Area and perimeter help me slove

Area and perimeter help me slove-example-1
User Ceekay
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1 Answer

2 votes

Answer:

Perimeter:44.91

Area:123.5

Explanation:

Perimeter: Starting with the semi circle, the circle has a radius of 5, and pi*radius^2 = 2*pi*radius=pi*5*2=3.14*10 = 31.4

that is the circumference for a whole circle, so the semi circle is 31.4/2=15.7

the perimeter of the triangle is 7+10+ sqrt(7^2+10^2)= sqrt(49+100) = sqrt(149)=12.21

12.21+7+10+15.7=44.91

area: area of the triangle is 7*10=70 70/2 = 45

area of the semicircle is 5 squared * 3.14 which is 25*3.14 which is 78.5

45+78.5= 123.5

User Brian Wagner
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