Use the Information Given in the Figure to Find the Length Ad. - Mathematics

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Sum

Use the information given in the figure to find the length AD.

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Solution

Given:
AB = 20 cm
∴ AO = `"AB"=20/2` = 10cm
BC = OD = 24 cm

To find: Length of AD
In right angled triangle
AOD (AD)2 = (AO)2 + (OD)2
(AD)2 = (10)2 + (24)2
(AD)2 = 100 + 576
(AD)2 = 676
∴ AD =  `sqrt(26xx26)`
AD = 26 cm

  Is there an error in this question or solution?
Chapter 16: Pythagoras Theorem - Exercise 16

APPEARS IN

Selina Concise Mathematics Class 7 ICSE
Chapter 16 Pythagoras Theorem
Exercise 16 | Q 14

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