In a right angle triangle ABC angle B equal to 90 degree if AC equal to 13 cm BC equal to 5 cm find AB? with method
Answers
Answered by
3
Answer:
12cm
Step-by-step explanation:
using pythagorus theorem
AB^2 = AC^2 - BC^2
= 169-25
=144
AB= √144
AB = 12cm
Answered by
8
Given:-
- A triangle ABC is right angled at B.
- AC of ∆ ABC = 13 cm.
- BC of ∆ABC = 5 cm.
⠀⠀⠀⠀⠀⠀
To find:-
- Measure of side AB.
⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀
By using Pythagoras theorem
☘ (Base)² + (Perpendicular)² = (Hypotenuse)²
⠀⠀⠀⠀⠀⠀
Base = BC = 5 cm
Perpendicular = AB = To find
Hypotenuse = AC = 13 cm
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Put the values
⇒(5)² + (AB)² = (13)²
⇒(AB)² = (13)² - (5)²
⇒(AB)² = 169 - 25
⇒(AB)² = 144
⇒AB = √144
⇒AB = 12
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Thus, Measure of AB is 12 cm.
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