find the area of a right angled triangle whose base is 12cm and hypotenuse is 13 cm
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Answered by
30
✴ Hola ✴
⏩ Area of a right angle triangle=1/2bh
=1/2 12×13
=156/2
=78.
⏩ Area of a right angle triangle=1/2bh
=1/2 12×13
=156/2
=78.
Krais:
But I hv read that area = 1/2 ☓ base ☓ height?
yeah that's it is
i was wrong
actually iam very week in maths
But the answer #riya 69574 wrote area = 1/2 Base ☓ Hypotenuse. So that means his/her ans is wrong
??
i thk u should ask her ?
Hello # riya 69574
Do u think area of triangle can be 1/2 Base ☓ Hypotenuse
??
Answered by
48
✨Answer:
The area of triangle is 30 sq cm
✨ Step-by-step explanation:
Base of right angled triangle = 12 cm
Hypotenuse of triangle = 13 cm
By Pythagoras theorem :
Hypotenuse ^2 = base ^2 +altitude^2
(13)^2 = (12)^2 + x^2
169 = 144 + x^2
x^2 = 25
x = 5 cm
Altitude = 5cm
➡️ Area of rt angled triangle = 1/2 base ☓ height
➡️ Area triangle = 1/2 ☓ 12 ☓ 5
➡️ Area of triangle = 6 ☓ 5
➡️ Area of triangle = 30 cm^2.
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