9 cm x 9 cm x 12 cm is an isosceles triangle with base 12
and height = sqrt(81-36) cm = sqrt(45) cm
So area = 1/2 * base * height = 1/2 * 12 * sqrt(45) = 40.25 cm2
Fist lets start by reviewing what the area of a pyramid is. Volume of a pyramid (with a rectangular base) is the Area of the Base x Height x 1/3. Where the 1/3 comes in I don't know but that's the equation. So we have a rectangle with the sides measuring 9cm x 12cm. The area of a rectangle is S1 * S2 so we have an area of 9cm*12cm=108cm2. We are given the height (altitude) as 12 cm so now that we know the area of the base, and the height we can find the volume. V= 108cm2 * 12cm *1/3 V= 1296cm3*1/3 V= 432cm3
Area of the rectangle is 144cm. The sides of a square with the same ares is 12cm.
12 x 9 = 108 square centimeters
To find the area of a rectangle, you multiply the length by the width. In this case, the width is 7cm and the length is 9cm. So, the area would be 7cm x 9cm = 63 square centimeters.
54
Fist lets start by reviewing what the area of a pyramid is. Volume of a pyramid (with a rectangular base) is the Area of the Base x Height x 1/3. Where the 1/3 comes in I don't know but that's the equation. So we have a rectangle with the sides measuring 9cm x 12cm. The area of a rectangle is S1 * S2 so we have an area of 9cm*12cm=108cm2. We are given the height (altitude) as 12 cm so now that we know the area of the base, and the height we can find the volume. V= 108cm2 * 12cm *1/3 V= 1296cm3*1/3 V= 432cm3
The formula for finding the area of a trapezoid is:A = (1/2) (b1 + b2 ) h
Area = 108cm2 Width = 12cm Length = 9cm
Area of the rectangle is 144cm. The sides of a square with the same ares is 12cm.
The formula for the surface area is 2lw + 2hl +2hw. So, 2(9*12)+2(9*12) +2(9*9)=?
53.5 square cm to 1 d.p. Use the cosine rule to find an angle. Then use: Area = 1/2*a*b*sin C
A right triangle has a hypotenuse of 12cm and a leg that is 9cm the other leg would be 7.94. This is a math problem.
15 cm Solved through Pythagoras' theorem.
The area of a rectangle of sides 9cm and 10cm is:9cm x 10cm = 90cm2This is equivalent to 0.009m2
12 x 9 = 108 square centimeters
9cm
Area is length times width. So... 9x9=81