Area of right angled triangle is 54cm square. If the length of one side forming right angle in 12 cm find the length of other side. Also find the length of altitude on hypotenuse.
nikks72:
ok done
Answers
Answered by
4
Let ABC be the right angled triangle.
Given, Area of the triangle = 54 cm^2
Length of one of its side, BC = 12 cm
We know that, Area of a right angle triangle = 1/2 × b× h
= > 54 = 1/2 × AB × BC
=> 54 = 1/2 × AB × 12
=> AB = 9
Again, APPLYING PYTHAGORAS THEOREM :-
AC^2 = AB^2 + BC^2
= 9^2 + 12^2
= 81 + 144
= 225
Hence, AC = 15 cm
The length of the other side i. e. the Hypotenuse, AC = 15 cm. The length of the altitude, AB = 9 cm.
Answered by
1
Using Half×base×height the perpendicular comes to be 9cm(Just by putting all the values in the formula). After that using Pythagoras theorem----
hypotenuse=15 cm and the altitude was found using Pythagoras theorem altitude=9cm
hypotenuse=15 cm and the altitude was found using Pythagoras theorem altitude=9cm
Similar questions
Math,
7 months ago
English,
7 months ago
Computer Science,
7 months ago
Math,
1 year ago
Math,
1 year ago