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3 years ago

Numbers 2 and 4 answers ASAP

Mathematics

1 answer:

Mekhanik [1.2K]3 years ago

8 0

2a. p÷7

2b. 147p÷7 245p÷7

4a. 2.5+h

4b. 2.5+3p 2.5+5.5p

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Question is Incomplete, Complete question is given below.

Prove that a triangle with the sides (a − 1) cm, 2√a cm and (a + 1) cm is a right angled triangle.

Answer:

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Step-by-step explanation:

Given : Triangle having sides (a - 1) cm, 2√a and (a + 1) cm.

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Let the triangle be denoted by Δ ABC with side as;

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So;

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Also;

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${CA}^2 = AB^2 + BC^2$

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Hence, ${CA}^2 = AB^2 + BC^2$

Now In right angled triangle the sum of square of two sides of triangle is equal to square of the third side.

This proves that ∆ABC is right angled triangle with right angle at B.

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