Answer the 5th question. { NO LINKS }.{ NO ANSWERS FROM GOOGLE }.
Q.5. The base of a right angled triangle is 12 cm and its hypotenuse is 13 cm long. Find its area and the perimeter.

Hypotenuse2= base2 + height2
132=height 2 + 122
169= height 2 + 144
169 - 144= height 2
25= height 2
5= height
so, height is 5 cm.
Now area = 1/2*base*height'
= 1/2*12*5
= 30 cm2

Perimeter=12+13+5=30  cm

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