We know that
[the area of composite figure]=[area of rectangle]+[area of a half circle]
[area of rectangle]=b*h
where
b=the base
h=the height
[area of rectangle]=b*h--------> 4.1*8.6---------> 35.26 cm²
[area of a circle]=pi*r²
where
r=the radius
r=4.1/2-------> 2.05 cm
the figure is a half circle
then
[area of a half circle]=pi*r²/2--------> pi*2.05²/2--------> 6.60 cm²
[the area of composite figure]=35.26+6.60--------> 41.86 cm²
the answer is
41.86 cm²
Answer:
the place value
Step-by-step explanation:
you should place similar place values in one line
Answer:
d=(r)(2)
Step-by-step explanation:
diameter= radius times 2
Answer:
x=3, -5.
Step-by-step explanation:
x^2+2x+25=40
x^2+2x+25-40=0
x^2+2x-15=0
factor out the trinomial,
(x-3)(x+5)=0
zero property,
x-3=0, x+5=0,
x=0+3=3,
x=0-5=-5.
