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Levart [38]
3 years ago
11

A certain television is advertised as a 21-inch TV (the diagonal length). If the height of the TV is 13 inches, how wide is the

TV? Round to the nearest tenth of an inch.
Mathematics
1 answer:
kolbaska11 [484]3 years ago
3 0

Answer:

16.5 inches

Step-by-step explanation:

Use the Pythagorean Theorem

a² + b² = c²

a² + 13² = 21²

a² + 169 = 441

Subtract 169 from both sides

a² = 272

Take the square root of both sides

a = 16.4924225025

Rounded

a = 16.5 inches

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The area of a compact disc is 78.53 square centimeters. What is the radius of the disc? Use pi = 3.14
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6 0
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