The right pyramid shown has a square base, and its lateral faces are triangles. A right pyramid has a square base with 4-centimeter sides and 4 triangular faces. The height of each face is 8 centimeters.

The surface area of the pyramid is
cm2 .

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Ответ:

janreyes39

23.07.2022

Mathematics

10.8109 amu

Step-by-step explanation:

The average atomic mass of boron is determined as the average of the atomic masses of both isotopes weighed by their respective abundances.

Therefore, the average atomic mass is given by:

$M=10.0129*0.1991+11.0093*0.8009\\M=10.8109\ amu$

The average atomic mass of boron isotopes is 10.8109 amu.

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The right pyramid shown has a square base, and its lateral faces are triangles. A right pyramid has a square base with 4-centimeter sides and 4 triangular faces. The height of each face is 8 centimeters. The surface area of the pyramid is cm2 .