Question

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​

Answer 1

Answer:

12cm

Step-by-step explanation:

using pythagorus theorem

AB^2 = AC^2 - BC^2

= 169-25

=144

AB= √144

AB = 12cm

Answer 2

Given:-

• A triangle ABC is right angled at B.
• AC of ∆ ABC = 13 cm.
• BC of ∆ABC = 5 cm.

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To find:-

• Measure of side AB.

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$\huge \tt \:☃\: SolutioN$

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By using Pythagoras theorem

☘ (Base)² + (Perpendicular)² = (Hypotenuse)²

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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.