How do u solve number 11

#11 is an isosceles triangle which means 2 sides are the same. If they give you the hypotenuse, then I'm assuming the 2 same sides are unknown.

Using the Pythagorean Theorem, a^2+b^2=c^2, then you get:

a²+b²=8²

a²+b²=64

Which means a² and b² must be 32 each because they are the same. Find the sqrt of 32 for the smaller legs.

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared