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Sarah’s new computer screen is 21 inches wide and the diagonal is 29 inches long. What is the height of the screen? A.15 in B.18 in. C.20 in. D.28 in.
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Sarah’s new computer screen is 21 inches wide and the diagonal is 29 inches long. What is the height of the screen?

A.15 in
B.18 in.
C.20 in.
D.28 in.

User Girish Kumar Sinha
by
8.5k points

2 Answers

4 votes

Answer:

20 in.

This is also C

Explanation:

User Honza Dejdar
by
8.4k points
5 votes
a^2 + b^2 = c^2 (qudratic formula)
21^2 + h(height)^2 = 29^2
441 + h^2 = 841
h^2 = 400
h = 20

C
User Musicamante
by
8.0k points
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