Question

solve this problem please​

Answer 1

only the first figure can be seen properly

solution( 1)

the missing side

=

$\sqrt{20 {}^{2} - 12 {}^{2} } \\ = \sqrt{(2 0 + 12)(20 - 12)} \\ = \sqrt{32 \times 8} \\ = \sqrt{2 {}^{8} } \\ = 2 {}^{4} \\ = 16$

Answer 2

Answer:

it can be solve with hypotenuse side test

Step-by-step explanation:

=(hypo)square= (side1)square+(side 2)square

=(20)square=(side1) square+ (12)square

=400=(side1)square + 144

=(side1)square=400-144

=(side1)square=256 {removing square }

=(side1)=16