Question

the base of an isosceles triangle is 12 cm and its perimeter is 32 cm.Find its area.​

Answer 1

Answer:

area = 48 cm^2

Step-by-step explanation:

base=32 cm

so sum of 2 sides is 20cm

length of other 2 sides = 20/2= 10 cm

by pythagoras theorum,

h of triangle = 10² - 6²

= 100 - 36 = √64= 8 cm

Finally,

area of triangle = 1/2 ×b×h

= 1/2 × 12× 8

= 6 × 8 = 48 cm..

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