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3 years ago

Find the measure of the missing angles.

Mathematics

1 answer:

Yuri [45]3 years ago

3 0

Answer:

d = 102° , e = 56° , f = 22°

Step-by-step explanation:

d and 102° are vertically opposite angles and congruent , so

d = 102°

e and 56° are vertically opposite angles and are congruent , so

e = 56°

f, d and e lie on a straight line and sum to 180° , then

f + d + e = 180° , that is

f + 102° + 56° = 180°

f + 158° = 180° ( subtract 158° from both sides )

f = 22°

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tia_tia [17]

9514 1404 393

Answer:

cone: 138.16 in²

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Step-by-step explanation:

Use the appropriate formula from your list of area and volume formulas.

Area of a Cone

A = πr(r +h) . . . . . where r is the radius and h is the slant height

The radius is half the diameter, so is 4 inches.

A = π(4 in)(4 in + 7 in) = 44π in² ≈ 138.16 in²

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A = 2sh . . . . . where s is the side length of the base and h is the slant height

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ruslelena [56]

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Step-by-step explanation:

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3 years ago

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S_A_V [24]

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Step-by-step explanation:

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