A rectangular pyramid that measure 10cm by 7cm. Calculate
A the surface area
B.volume of the pyramid
C.the sides of a triangle.
4 answers
gotta know the height of the pyramid.
Height is 11
I need to know the base
Apologies for the confusion. If the rectangular pyramid has a base measuring 10cm by 7cm and a height of 11cm:
A) To calculate the surface area, we need to find the areas of the four triangular faces and the rectangular base.
The area of each triangular face is given by the formula: (base x height) / 2
Area of each triangular face = (10cm x 11cm) / 2 = 55cm²
Therefore, the total area of all four triangular faces = 55cm² x 4 = 220cm²
The area of the rectangular base is given by the formula: length x width
Area of the rectangular base = 10cm x 7cm = 70cm²
Finally, to calculate the surface area, we add the areas of the triangular faces and the base:
Surface area = 220cm² + 70cm² = 290cm²
B) To calculate the volume of the pyramid, we use the formula: (base area x height) / 3
Volume of the pyramid = (10cm x 7cm x 11cm) / 3 = 253.33cm³
C) If you are looking to find the sides of a triangle, please provide more information. Pyramids do not necessarily have triangles as sides, and the given dimensions do not correspond to any triangle.
A) To calculate the surface area, we need to find the areas of the four triangular faces and the rectangular base.
The area of each triangular face is given by the formula: (base x height) / 2
Area of each triangular face = (10cm x 11cm) / 2 = 55cm²
Therefore, the total area of all four triangular faces = 55cm² x 4 = 220cm²
The area of the rectangular base is given by the formula: length x width
Area of the rectangular base = 10cm x 7cm = 70cm²
Finally, to calculate the surface area, we add the areas of the triangular faces and the base:
Surface area = 220cm² + 70cm² = 290cm²
B) To calculate the volume of the pyramid, we use the formula: (base area x height) / 3
Volume of the pyramid = (10cm x 7cm x 11cm) / 3 = 253.33cm³
C) If you are looking to find the sides of a triangle, please provide more information. Pyramids do not necessarily have triangles as sides, and the given dimensions do not correspond to any triangle.