Circumference = 2 
r
42 = 2 r
42/(2) = r
21/ = r
Area = r²
= (21/)²
= 21²/
= 140.37
≈ 140.4
Answer: A
42 = 2
42/(2
21/
Area =
=
= 21²/
= 140.37
≈ 140.4
Answer: A
What is the meaning of the expression 45 x (10 - 2)?
2 answers:
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1. All you have to do to find the area of the figure. IS first find the area of the rectangle. This is easy because all you have to do is base times height.
22 x 17 = 374
Now to find the area of the triangle all you have to do is do base times height like a rectangle, but then divide it by 2 afterwords.
19 x 12 = 228 ÷ 2 = 114.
Now add the two area's together:
374 + 114 = 488.
Just do the same with the one below, I've altered the pic a bit to make it easier.
22 x 17 = 374
Now to find the area of the triangle all you have to do is do base times height like a rectangle, but then divide it by 2 afterwords.
19 x 12 = 228 ÷ 2 = 114.
Now add the two area's together:
374 + 114 = 488.
Just do the same with the one below, I've altered the pic a bit to make it easier.
