the base of one side of a pyramid is 20cm and the height is 16.6cm. The base of the other side is 18cm and thwe height is 17.2cm
What is the surface of the rectangular pyramid
To find the surface area of the rectangular pyramid, we need to calculate the surface area of each side and add them together.
For the first side with a base of 20 cm and height of 16.6 cm:
Surface area = 0.5 * base * height = 0.5 * 20 * 16.6 = 166 cm²
For the second side with a base of 18 cm and height of 17.2 cm:
Surface area = 0.5 * base * height = 0.5 * 18 * 17.2 = 154.8 cm²
The total surface area of the rectangular pyramid is the sum of the surface area of both sides:
Total surface area = 166 cm² + 154.8 cm² = 320.8 cm²
Therefore, the surface area of the rectangular pyramid is 320.8 cm².
the options are
1643.2
1178.8
1001.6
102787.2
To calculate the surface area of a rectangular pyramid, we need to find the area of each face and add them together.
1. The base of the first side is 20 cm and the height is 16.6 cm:
Area of the first side = 20 cm * 16.6 cm = 332 cm²
2. The base of the second side is 18 cm and the height is 17.2 cm:
Area of the second side = 18 cm * 17.2 cm = 309.6 cm²
Therefore, the total surface area of the rectangular pyramid is:
Total surface area = 2 * (332 cm² + 309.6 cm²) = 2 * (641.6 cm²) = 1283.2 cm²
Therefore, the correct answer from the options provided is:
1178.8