Question

Answer the picture in 5 minutes, please

Answer 1

area of the isosceles triangle is
`60cm^(2)`

Explanation:

three sides are a=10, b=13, c=13

Area of Triangle:

`√(s(s-a)(s-b)(s-c))`

where,

`s=(a+b+c)/(2)`

`s=(10+13+13)/(2)`

s = 18

now,

`A = √(18(18-10)(18-13)(18-13))`

`A =√(9(16)(5)(5))`

A = 3x4x5

`A =60cm^(2)`