How to find the length of an edge of a tetrahedron - PSAT Math
Card 1 of 7
Refer to the above tetrahedron, or four-faced solid.The surface area of the tetrahedron is 444. Evaluate 
to the nearest tenth.
Refer to the above tetrahedron, or four-faced solid.The surface area of the tetrahedron is 444. Evaluate
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The tetrahedron has four faces, each of which is an equilateral triangle with sidelength 
. Since the total surface area is 444, each triangle has area one fourth of this, or 111. To find 
, set 
in the formula for the area of an equilateral triangle:
The tetrahedron has four faces, each of which is an equilateral triangle with sidelength
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Refer to the above tetrahedron, or four-faced solid.The surface area of the tetrahedron is 444. Evaluate to the nearest tenth.
Refer to the above tetrahedron, or four-faced solid.The surface area of the tetrahedron is 444. Evaluate
Tap to reveal answer
The tetrahedron has four faces, each of which is an equilateral triangle with sidelength . Since the total surface area is 444, each triangle has area one fourth of this, or 111. To find , set in the formula for the area of an equilateral triangle:
The tetrahedron has four faces, each of which is an equilateral triangle with sidelength
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Refer to the above tetrahedron, or four-faced solid.The surface area of the tetrahedron is 444. Evaluate to the nearest tenth.
Refer to the above tetrahedron, or four-faced solid.The surface area of the tetrahedron is 444. Evaluate
Tap to reveal answer
The tetrahedron has four faces, each of which is an equilateral triangle with sidelength . Since the total surface area is 444, each triangle has area one fourth of this, or 111. To find , set in the formula for the area of an equilateral triangle:
The tetrahedron has four faces, each of which is an equilateral triangle with sidelength
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Refer to the above tetrahedron, or four-faced solid.The surface area of the tetrahedron is 444. Evaluate to the nearest tenth.
Refer to the above tetrahedron, or four-faced solid.The surface area of the tetrahedron is 444. Evaluate
Tap to reveal answer
The tetrahedron has four faces, each of which is an equilateral triangle with sidelength . Since the total surface area is 444, each triangle has area one fourth of this, or 111. To find , set in the formula for the area of an equilateral triangle:
The tetrahedron has four faces, each of which is an equilateral triangle with sidelength
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Refer to the above tetrahedron, or four-faced solid.The surface area of the tetrahedron is 444. Evaluate to the nearest tenth.
Refer to the above tetrahedron, or four-faced solid.The surface area of the tetrahedron is 444. Evaluate
Tap to reveal answer
The tetrahedron has four faces, each of which is an equilateral triangle with sidelength . Since the total surface area is 444, each triangle has area one fourth of this, or 111. To find , set in the formula for the area of an equilateral triangle:
The tetrahedron has four faces, each of which is an equilateral triangle with sidelength
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Refer to the above tetrahedron, or four-faced solid.The surface area of the tetrahedron is 444. Evaluate to the nearest tenth.
Refer to the above tetrahedron, or four-faced solid.The surface area of the tetrahedron is 444. Evaluate
Tap to reveal answer
The tetrahedron has four faces, each of which is an equilateral triangle with sidelength . Since the total surface area is 444, each triangle has area one fourth of this, or 111. To find , set in the formula for the area of an equilateral triangle:
The tetrahedron has four faces, each of which is an equilateral triangle with sidelength
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Refer to the above tetrahedron, or four-faced solid.The surface area of the tetrahedron is 444. Evaluate to the nearest tenth.
Refer to the above tetrahedron, or four-faced solid.The surface area of the tetrahedron is 444. Evaluate
Tap to reveal answer
The tetrahedron has four faces, each of which is an equilateral triangle with sidelength . Since the total surface area is 444, each triangle has area one fourth of this, or 111. To find , set in the formula for the area of an equilateral triangle:
The tetrahedron has four faces, each of which is an equilateral triangle with sidelength
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