Answer:
GH = 7
Step-by-step explanation:
Using the sine ratio in the right triangle and the exact value
sin45° = 
sin45° =
=
=
=
( cross- multiply )
GH = 7
Answer:

Step-by-step explanation:

We know that the area of a rectangle is equal to the width multiplied by the length. So in this case the algebraic expression is (x+5)*(3x+10). You get 3x^2 +10x +15x +50= 3x^2 +25x +50.
90° : )
the answer is 90 degrees :)