Question

If the three sides of a triangle are 20cm,21cm and 29cm, then the measure of the angle opposite to the longest side is _______ degrees *

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Answer 1

Answer:

The sides of triangle are 20,21,29.

The given triangle is right angles triangle with 29 as hypotenuse.

Let the length of altitudes be a,b,c

We can say that a=20,b=21, since it is right angled triangle and c is the length of altitude to the hypotenuse

By equating area, we get 21×20×21=21×29×c

⇒c=29420

Therefore the lengths of altitudes will be a+b+c=20+21+29420=291609

So the correct option is A.

Answer 2

Answer:

90°

Step-by-step explanation:

as 20,21,29 are pythagorean triplet the triangle is a right angled triangle so the hypotenuse will be the longest side(basic property of right angle triangle) which is opposite of the right angle

so the answer is 90°