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First, use the pythagorean theorem to find the length of the missing side of the the right triangle. Add 10^2 and 7^2. You'll get 149. Get the square root, which will be about 12.209. Subtract from this 4 meters on the other side of the figure, and you find that 8.209...

8 Answers · Science & Mathematics · 27/02/2008

AREA: (7x12)+(10x4)+(9x12) = ? 84 + 40 + 108 = 232 inches squared. PERIMETER: 12+7+8+10+8+9+12+26 = ? = 92 inches.

3 Answers · Science & Mathematics · 27/02/2008

The overall area of the rectangle if the rectangular cutout at the top were filled in is 12 * 26 in². The missing dimension is the bottom of the cutout, which is the horizontal overall dimension (26") minus the sum of the two top horizontal dimensions...

1 Answers · Science & Mathematics · 27/02/2008

I'm going to presume those rounded ends are semi-circles of diameter 70. The Area (A) or the shaded rectantls will be the length (l) of one side multiplied the height (h). (A=lh) We know the...

2 Answers · Science & Mathematics · 27/02/2008