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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
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∙ 14y ago
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A right rectangular the rectangle base is 9Cm by 12Cm and the altitude of the pyramid is 12Cm find its volume?
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
A square has the same area as a rectangle with sides 9cm and 16cm. What is length of the side of the square?
Area of the rectangle is 144cm. The sides of a square with the same ares is 12cm.
Do these three sides make a right triangle 6cm 9cm 12cm?
No
What is the volume of a carton that measure 12 cm Long 9cm and 12cm high?
1296 cubic cm
What is the total square centimeters needed to cover a 12cm by 9cm rectangle?
12 x 9 = 108 square centimeters
A right rectangular the rectangle base is 9Cm by 12Cm and the altitude of the pyramid is 12Cm find its volume?
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
What is an area of a trapezoid with bases of 12cm and 3cm and height is 9cm?
The formula for finding the area of a trapezoid is:A = (1/2) (b1 + b2 ) h
What is the measure of the missing dimension for a rectangle that a-108cm2 w equals 12 cm?
Area = 108cm2 Width = 12cm Length = 9cm
A square has the same area as a rectangle with sides 9cm and 16cm. What is length of the side of the square?
Area of the rectangle is 144cm. The sides of a square with the same ares is 12cm.
Do these three sides make a right triangle 6cm 9cm 12cm?
No
If the height of a rectangular prism is 9cm and the length is 12cm and the width is 9cm then what is the surface area of this figure?
The formula for the surface area is 2lw + 2hl +2hw. So, 2(9*12)+2(9*12) +2(9*9)=?
What is the area of a triangle that has sides of 9cm 12cm and 14cm?
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
What is the volume of a carton that measure 12 cm Long 9cm and 12cm high?
1296 cubic cm
If a right triangle has a hypotenuse of 12 cm and one leg that measures 9cm?
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.
How long is the diagonal of a rectangle with the length of 12cm and width of 9cm?
15 cm Solved through Pythagoras' theorem.
Area of 9cm and 10 cm?
The area of a rectangle of sides 9cm and 10cm is:9cm x 10cm = 90cm2This is equivalent to 0.009m2
What is the total square centimeters needed to cover a 12cm by 9cm rectangle?
12 x 9 = 108 square centimeters
